Census Profile 2021 - Income of Individuals, Households and Economic Families for Hamilton CSD

Data quality: Hamilton, City (C) Total non-response (TNR) rate, short-form census questionnaire: 2.5% Total non-response (TNR) rate, long-form census questionnaire: 3.5% Notes: 21: Total income - The sum of certain incomes (in cash and in some circumstances in kind) of the statistical unit during a specified reference period. The components used to calculate total income vary between: *statistical units of social statistical programs such as persons private households census families and economic families; *statistical units of business statistical programs such as enterprises companies establishments and locations; *statistical units of farm statistical programs such as farm operator and farm family. In the context of persons total income refers to receipts from certain sources before income taxes and deductions during a specified reference period. In the context of census families total income refers to receipts from certain sources of all of its family members before income taxes and deductions during a specified reference period. In the context of economic families total income refers to receipts from certain sources of all of its family members before income taxes and deductions during a specified reference period. In the context of households total income refers to receipts from certain sources of all household members before income taxes and deductions during a specified reference period. The monetary receipts included are those that tend to be of a regular and recurring nature. Receipts that are included as income are: *employment income from wages salaries tips commissions and net income from self-employment (for both unincorporated farm and non-farm activities); *income from investment sources such as dividends and interest on bonds accounts guaranteed investment certificates (GICs) and mutual funds; *income from employer and personal pension sources such as private pensions and payments from annuities and registered retirement income funds (RRIFs); *other regular cash income such as child support payments received spousal support payments (alimony) received and scholarships; *income from government sources such as social assistance child benefits Employment Insurance benefits Old Age Security benefits COVID-19 benefits and Canada Pension Plan and Québec Pension Plan benefits and disability income. Receipts excluded from this income definition are: *one-time receipts such as lottery winnings gambling winnings cash inheritances lump-sum insurance settlements and tax-free savings account (TFSA) or registered retirement savings plan (RRSP) withdrawals; *capital gains because they are not by their nature regular and recurring. It is further assumed that they are more relevant to the concept of wealth than the concept of income; *employers' contributions to registered pension plans Canada Pension Plan Québec Pension Plan and Employment Insurance; *voluntary inter-household transfers imputed rent goods and services produced for barter and goods produced for own consumption. For the 2021 Census the reference period for income data is the calendar year 2020 unless otherwise specified. 22: After-tax income - After-tax income refers to total income less income taxes of the statistical unit during a specified reference period. Income taxes refers to the sum of federal income taxes provincial and territorial income taxes less abatement where applicable. Provincial and territorial income taxes include health care premiums in certain jurisdictions. Abatement reduces the federal income taxes payable by persons residing in Quebec or in certain self-governing Yukon First Nation settlement lands. For the 2021 Census the reference period for income data is the calendar year 2020 unless otherwise specified. 23, 24: Total income - The sum of certain incomes (in cash and in some circumstances in kind) of the statistical unit during a specified reference period. The components used to calculate total income vary between: *statistical units of social statistical programs such as persons private households census families and economic families *statistical units of business statistical programs such as enterprises companies establishments and locations; *statistical units of farm statistical programs such as farm operator and farm family. In the context of persons total income refers to receipts from certain sources before income taxes and deductions during a specified reference period. In the context of census families total income refers to receipts from certain sources of all of its family members before income taxes and deductions during a specified reference period. In the context of economic families total income refers to receipts from certain sources of all of its family members before income taxes and deductions during a specified reference period. In the context of households total income refers to receipts from certain sources of all household members before income taxes and deductions during a specified reference period. The monetary receipts included are those that tend to be of a regular and recurring nature. Receipts that are included as income are: *employment income from wages salaries tips commissions and net income from self-employment (for both unincorporated farm and non-farm activities); *income from investment sources such as dividends and interest on bonds accounts guaranteed investment certificates (GICs) and mutual funds; *income from employer and personal pension sources such as private pensions and payments from annuities and registered retirement income funds (RRIFs); *other regular cash income such as child support payments received spousal support payments (alimony) received and scholarships; *income from government sources such as social assistance child benefits Employment Insurance benefits Old Age Security benefits Canada Pension Plan and Québec Pension Plan benefits and disability income. Receipts excluded from this income definition are: *one-time receipts such as lottery winnings gambling winnings cash inheritances lump-sum insurance settlements and tax-free savings account (TFSA) or registered retirement savings plan (RRSP) withdrawals; *capital gains because they are not by their nature regular and recurring. It is further assumed that they are more relevant to the concept of wealth than the concept of income; *employers' contributions to registered pension plans Canada Pension Plan Québec Pension Plan and Employment Insurance; *voluntary inter-household transfers imputed rent goods and services produced for barter and goods produced for own consumption. After-tax income - Total income less income taxes of the statistical unit during a specified reference period. Income taxes refers to the sum of federal income taxes provincial and territorial income taxes less abatement where applicable. Provincial and territorial income taxes include health care premiums in certain jurisdictions. Abatement reduces the federal income taxes payable by persons residing in Quebec or in certain self-governing Yukon First Nation settlement lands. Market income - The sum of employment income (wages salaries and commissions net self-employment income from farm or non-farm unincorporated business and/or professional practice) investment income private retirement income (retirement pensions superannuation and annuities including those from registered retirement savings plans [RRSPs] and registered retirement income funds [RRIFs]) and other money income from market sources during the reference period. It is equivalent to total income minus government transfers. It is also referred to as income before transfers and taxes. Government transfers - All cash benefits received from federal provincial territorial or municipal governments during the reference period. It includes: *Old Age Security pension Guaranteed Income Supplement Allowance or Allowance for the Survivor; *retirement disability and survivor benefits from Canada Pension Plan and Québec Pension Plan; *benefits from Employment Insurance and Québec parental insurance plan; *child benefits from federal and provincial programs; *social assistance benefits; - workers' compensation benefits; *Canada workers benefit (CWB); *Goods and services tax credit and harmonized sales tax credit; *other income from government sources. Employment income - All income received as wages salaries and commissions from paid employment and net self-employment income from farm or non-farm unincorporated business and/or professional practice during the reference period. Employment Insurance (EI) benefits - All Employment Insurance (EI) benefits received during the reference period before income tax deductions. It includes benefits for unemployment sickness maternity paternity adoption compassionate care work sharing retraining and benefits to self-employed fishers received under the federal EI Program or the Québec parental insurance plan. The reference period for these variables is calendar year 2019. These variables are intended for comparison with their 2020 equivalent and other 2019 income variables. Income for 2019 is presented in 2020 constant dollars. Average income of a specified group is calculated by dividing the aggregate income of that group by the number of units in that group. Average incomes of individuals are calculated for those with income (positive or negative). Median income - The median income of a specified group is the amount that divides the income distribution of that group into two halves i.e. the incomes of half of the units in that group are below the median while those of the other half are above the median. Median incomes of individuals are calculated for those with income (positive or negative). 25: Employment income - All income received as wages salaries and commissions from paid employment and net self-employment income from farm or non-farm unincorporated business and/or professional practice during the reference period. The reference period for this variable is calendar year 2019. The variable is intended for comparison with its 2020 equivalent and other 2019 income variables. Income for 2019 is presented in 2020 constant dollars. 26: Total income - The sum of certain incomes (in cash and in some circumstances in kind) of the statistical unit during a specified reference period. The components used to calculate total income vary between: *statistical units of social statistical programs such as persons private households census families and economic families; *statistical units of business statistical programs such as enterprises companies establishments and locations; *statistical units of farm statistical programs such as farm operator and farm family. In the context of persons total income refers to receipts from certain sources before income taxes and deductions during a specified reference period. In the context of census families total income refers to receipts from certain sources of all of its family members before income taxes and deductions during a specified reference period. In the context of economic families total income refers to receipts from certain sources of all of its family members before income taxes and deductions during a specified reference period. In the context of households total income refers to receipts from certain sources of all household members before income taxes and deductions during a specified reference period. The monetary receipts included are those that tend to be of a regular and recurring nature. Receipts that are included as income are: *employment income from wages salaries tips commissions and net income from self-employment (for both unincorporated farm and non-farm activities); *income from investment sources such as dividends and interest on bonds accounts guaranteed investment certificates (GICs) and mutual funds; *income from employer and personal pension sources such as private pensions and payments from annuities and registered retirement income funds (RRIFs); *other regular cash income such as child support payments received spousal support payments (alimony) received and scholarships; *income from government sources such as social assistance child benefits Employment Insurance benefits Old Age Security benefits COVID-19 benefits and Canada Pension Plan and Québec Pension Plan benefits and disability income. Receipts excluded from this income definition are: *one-time receipts such as lottery winnings gambling winnings cash inheritances lump-sum insurance settlements and tax-free savings account (TFSA) or registered retirement savings plan (RRSP) withdrawals; *capital gains because they are not by their nature regular and recurring. It is further assumed that they are more relevant to the concept of wealth than the concept of income; *employers' contributions to registered pension plans Canada Pension Plan Québec Pension Plan and Employment Insurance; *voluntary inter-household transfers imputed rent goods and services produced for barter and goods produced for own consumption. After-tax income - Total income less income taxes of the statistical unit during a specified reference period. Income taxes refers to the sum of federal income taxes provincial and territorial income taxes less abatement where applicable. Provincial and territorial income taxes include health care premiums in certain jurisdictions. Abatement reduces the federal income taxes payable by persons residing in Quebec or in certain self-governing Yukon First Nation settlement lands. For the 2021 Census the reference period for income data is the calendar year 2020 unless otherwise specified. Median income - The median income of a specified group is the amount that divides the income distribution of that group into two halves i.e. the incomes of half of the units in that group are below the median while those of the other half are above the median. Median incomes of households are calculated for all units whether or not they had income. 27: Total income - The sum of certain incomes (in cash and in some circumstances in kind) of the statistical unit during a specified reference period. The components used to calculate total income vary between: *statistical units of social statistical programs such as persons private households census families and economic families; *statistical units of business statistical programs such as enterprises companies establishments and locations; *statistical units of farm statistical programs such as farm operator and farm family. In the context of persons total income refers to receipts from certain sources before income taxes and deductions during a specified reference period. In the context of census families total income refers to receipts from certain sources of all of its family members before income taxes and deductions during a specified reference period. In the context of economic families total income refers to receipts from certain sources of all of its family members before income taxes and deductions during a specified reference period. In the context of households total income refers to receipts from certain sources of all household members before income taxes and deductions during a specified reference period. The monetary receipts included are those that tend to be of a regular and recurring nature. Receipts that are included as income are: *employment income from wages salaries tips commissions and net income from self-employment (for both unincorporated farm and non-farm activities); *income from investment sources such as dividends and interest on bonds accounts guaranteed investment certificates (GICs) and mutual funds; *income from employer and personal pension sources such as private pensions and payments from annuities and registered retirement income funds (RRIFs); *other regular cash income such as child support payments received spousal support payments (alimony) received and scholarships; *income from government sources such as social assistance child benefits Employment Insurance benefits Old Age Security benefits COVID-19 benefits and Canada Pension Plan and Québec Pension Plan benefits and disability income. Receipts excluded from this income definition are: *one-time receipts such as lottery winnings gambling winnings cash inheritances lump-sum insurance settlements and tax-free savings account (TFSA) or registered retirement savings plan (RRSP) withdrawals; *capital gains because they are not by their nature regular and recurring. It is further assumed that they are more relevant to the concept of wealth than the concept of income; *employers' contributions to registered pension plans Canada Pension Plan Québec Pension Plan and Employment Insurance; *voluntary inter-household transfers imputed rent goods and services produced for barter and goods produced for own consumption. After-tax income - Total income less income taxes of the statistical unit during a specified reference period. Income taxes refers to the sum of federal income taxes provincial and territorial income taxes less abatement where applicable. Provincial and territorial income taxes include health care premiums in certain jurisdictions. Abatement reduces the federal income taxes payable by persons residing in Quebec or in certain self-governing Yukon First Nation settlement lands. For the 2021 Census the reference period for income data is the calendar year 2020 unless otherwise specified. Average income - Average income of a specified group is calculated by dividing the aggregate income of that group by the number of units in that group. Average incomes of households are calculated for all units whether or not they had income. 28: Total income - The sum of certain incomes (in cash and in some circumstances in kind) of the statistical unit during a specified reference period. The components used to calculate total income vary between: *statistical units of social statistical programs such as persons private households census families and economic families; *statistical units of business statistical programs such as enterprises companies establishments and locations; *statistical units of farm statistical programs such as farm operator and farm family. In the context of persons total income refers to receipts from certain sources before income taxes and deductions during a specified reference period. In the context of census families total income refers to receipts from certain sources of all of its family members before income taxes and deductions during a specified reference period. In the context of economic families total income refers to receipts from certain sources of all of its family members before income taxes and deductions during a specified reference period. In the context of households total income refers to receipts from certain sources of all household members before income taxes and deductions during a specified reference period. The monetary receipts included are those that tend to be of a regular and recurring nature. Receipts that are included as income are: *employment income from wages salaries tips commissions and net income from self-employment (for both unincorporated farm and non-farm activities); *income from investment sources such as dividends and interest on bonds accounts guaranteed investment certificates (GICs) and mutual funds; *income from employer and personal pension sources such as private pensions and payments from annuities and registered retirement income funds (RRIFs); *other regular cash income such as child support payments received spousal support payments (alimony) received and scholarships; *income from government sources such as social assistance child benefits Employment Insurance benefits Old Age Security benefits COVID-19 benefits and Canada Pension Plan and Québec Pension Plan benefits and disability income. Receipts excluded from this income definition are: *one-time receipts such as lottery winnings gambling winnings cash inheritances lump-sum insurance settlements and tax-free savings account (TFSA) or registered retirement savings plan (RRSP) withdrawals; *capital gains because they are not by their nature regular and recurring. It is further assumed that they are more relevant to the concept of wealth than the concept of income; *employers' contributions to registered pension plans Canada Pension Plan Québec Pension Plan and Employment Insurance; *voluntary inter-household transfers imputed rent goods and services produced for barter and goods produced for own consumption. After-tax income - Total income less income taxes of the statistical unit during a specified reference period. Income taxes refers to the sum of federal income taxes provincial and territorial income taxes less abatement where applicable. Provincial and territorial income taxes include health care premiums in certain jurisdictions. Abatement reduces the federal income taxes payable by persons residing in Quebec or in certain self-governing Yukon First Nation settlement lands. For the 2021 Census the reference period for income data is the calendar year 2020 unless otherwise specified. Median income - The median income of a specified group is the amount that divides the income distribution of that group into two halves i.e. the incomes of half of the units in that group are below the median while those of the other half are above the median. Median incomes of families are calculated for all units whether or not they had income. Economic family structure - The combination of relatives that comprise a family. Classification on this variable considers the presence or absence of: married spouses or common-law partners; children; and other relatives. For more information refer to the variable 'economic family structure ' Dictionary Census of Population 2021. 29: Total income - The sum of certain incomes (in cash and in some circumstances in kind) of the statistical unit during a specified reference period. The components used to calculate total income vary between: *statistical units of social statistical programs such as persons private households census families and economic families; *statistical units of business statistical programs such as enterprises companies establishments and locations; *statistical units of farm statistical programs such as farm operator and farm family. In the context of persons total income refers to receipts from certain sources before income taxes and deductions during a specified reference period. In the context of census families total income refers to receipts from certain sources of all of its family members before income taxes and deductions during a specified reference period. In the context of economic families total income refers to receipts from certain sources of all of its family members before income taxes and deductions during a specified reference period. In the context of households total income refers to receipts from certain sources of all household members before income taxes and deductions during a specified reference period. The monetary receipts included are those that tend to be of a regular and recurring nature. Receipts that are included as income are: *employment income from wages salaries tips commissions and net income from self-employment (for both unincorporated farm and non-farm activities); *income from investment sources such as dividends and interest on bonds accounts guaranteed investment certificates (GICs) and mutual funds; *income from employer and personal pension sources such as private pensions and payments from annuities and registered retirement income funds (RRIFs); *other regular cash income such as child support payments received spousal support payments (alimony) received and scholarships; *income from government sources such as social assistance child benefits Employment Insurance benefits Old Age Security benefits COVID-19 benefits and Canada Pension Plan and Québec Pension Plan benefits and disability income. Receipts excluded from this income definition are: *one-time receipts such as lottery winnings gambling winnings cash inheritances lump-sum insurance settlements and tax-free savings account (TFSA) or registered retirement savings plan (RRSP) withdrawals; *capital gains because they are not by their nature regular and recurring. It is further assumed that they are more relevant to the concept of wealth than the concept of income; *employers' contributions to registered pension plans Canada Pension Plan Québec Pension Plan and Employment Insurance; *voluntary inter-household transfers imputed rent goods and services produced for barter and goods produced for own consumption. After-tax income - Total income less income taxes of the statistical unit during a specified reference period. Income taxes refers to the sum of federal income taxes provincial and territorial income taxes less abatement where applicable. Provincial and territorial income taxes include health care premiums in certain jurisdictions. Abatement reduces the federal income taxes payable by persons residing in Quebec or in certain self-governing Yukon First Nation settlement lands. For the 2021 Census the reference period for income data is the calendar year 2020 unless otherwise specified. Median income - The median income of a specified group is the amount that divides the income distribution of that group into two halves i.e. the incomes of half of the units in that group are below the median while those of the other half are above the median. Median incomes of persons not in families are calculated for all units whether or not they had income. 30: Calculation includes persons not in economic families without income (with an income of zero). 31: Total income - The sum of certain incomes (in cash and in some circumstances in kind) of the statistical unit during a specified reference period. The components used to calculate total income vary between: *statistical units of social statistical programs such as persons private households census families and economic families; *statistical units of business statistical programs such as enterprises companies establishments and locations; *statistical units of farm statistical programs such as farm operator and farm family. In the context of persons total income refers to receipts from certain sources before income taxes and deductions during a specified reference period. In the context of census families total income refers to receipts from certain sources of all of its family members before income taxes and deductions during a specified reference period. In the context of economic families total income refers to receipts from certain sources of all of its family members before income taxes and deductions during a specified reference period. In the context of households total income refers to receipts from certain sources of all household members before income taxes and deductions during a specified reference period. The monetary receipts included are those that tend to be of a regular and recurring nature. Receipts that are included as income are: *employment income from wages salaries tips commissions and net income from self-employment (for both unincorporated farm and non-farm activities); *income from investment sources such as dividends and interest on bonds accounts guaranteed investment certificates (GICs) and mutual funds; *income from employer and personal pension sources such as private pensions and payments from annuities and registered retirement income funds (RRIFs); *other regular cash income such as child support payments received spousal support payments (alimony) received and scholarships; - income from government sources such as social assistance child benefits Employment Insurance benefits Old Age Security benefits COVID-19 benefits and Canada Pension Plan and Québec Pension Plan benefits and disability income. Receipts excluded from this income definition are: *one-time receipts such as lottery winnings gambling winnings cash inheritances lump-sum insurance settlements and tax-free savings account (TFSA) or registered retirement savings plan (RRSP) withdrawals; *capital gains because they are not by their nature regular and recurring. It is further assumed that they are more relevant to the concept of wealth than the concept of income; *employers' contributions to registered pension plans Canada Pension Plan Québec Pension Plan and Employment Insurance; *voluntary inter-household transfers imputed rent goods and services produced for barter and goods produced for own consumption. After-tax income - Total income less income taxes of the statistical unit during a specified reference period. Income taxes refers to the sum of federal income taxes provincial and territorial income taxes less abatement where applicable. Provincial and territorial income taxes include health care premiums in certain jurisdictions. Abatement reduces the federal income taxes payable by persons residing in Quebec or in certain self-governing Yukon First Nation settlement lands. For the 2021 Census the reference period for income data is the calendar year 2020 unless otherwise specified. Average income - The average income of a specified group is calculated by dividing the aggregate income of that group by the number of units in that group. Average incomes of families are calculated for all units whether or not they had income. Economic family structure - The combination of relatives that comprise a family. Classification on this variable considers the presence or absence of: married spouses or common-law partners; children; and other relatives. For more information refer to the variable 'economic family structure ' Dictionary Census of Population 2021. 32: Total income - The sum of certain incomes (in cash and in some circumstances in kind) of the statistical unit during a specified reference period. The components used to calculate total income vary between: *statistical units of social statistical programs such as persons private households census families and economic families; *statistical units of business statistical programs such as enterprises companies establishments and locations; *statistical units of farm statistical programs such as farm operator and farm family. In the context of persons total income refers to receipts from certain sources before income taxes and deductions during a specified reference period. In the context of census families total income refers to receipts from certain sources of all of its family members before income taxes and deductions during a specified reference period. In the context of economic families total income refers to receipts from certain sources of all of its family members before income taxes and deductions during a specified reference period. In the context of households total income refers to receipts from certain sources of all household members before income taxes and deductions during a specified reference period. The monetary receipts included are those that tend to be of a regular and recurring nature. Receipts that are included as income are: *employment income from wages salaries tips commissions and net income from self-employment (for both unincorporated farm and non-farm activities); *income from investment sources such as dividends and interest on bonds accounts guaranteed investment certificates (GICs) and mutual funds; *income from employer and personal pension sources such as private pensions and payments from annuities and registered retirement income funds (RRIFs); *other regular cash income such as child support payments received spousal support payments (alimony) received and scholarships; *income from government sources such as social assistance child benefits Employment Insurance benefits Old Age Security benefits COVID-19 benefits and Canada Pension Plan and Québec Pension Plan benefits and disability income. Receipts excluded from this income definition are: *one-time receipts such as lottery winnings gambling winnings cash inheritances lump-sum insurance settlements and tax-free savings account (TFSA) or registered retirement savings plan (RRSP) withdrawals; *capital gains because they are not by their nature regular and recurring. It is further assumed that they are more relevant to the concept of wealth than the concept of income; *employers' contributions to registered pension plans Canada Pension Plan Québec Pension Plan and Employment Insurance; *voluntary inter-household transfers imputed rent goods and services produced for barter and goods produced for own consumption. After-tax income - Total income less income taxes of the statistical unit during a specified reference period. Income taxes refers to the sum of federal income taxes provincial and territorial income taxes less abatement where applicable. Provincial and territorial income taxes include health care premiums in certain jurisdictions. Abatement reduces the federal income taxes payable by persons residing in Quebec or in certain self-governing Yukon First Nation settlement lands. For the 2021 Census the reference period for income data is the calendar year 2020 unless otherwise specified. Average income - Average income of a specified group is calculated by dividing the aggregate income of that group by the number of units in that group. Average incomes of persons not in families are calculated for all units whether or not they had income. 33: Low-income status - The income situation of the statistical unit in relation to a specific low-income line in a reference year. Statistical units with income that is below the low-income line are considered to be in low income. For the 2021 Census the reference period for income data is the calendar year 2020 unless otherwise specified. Prior to the 2021 Census the LIM thresholds and the LIM low income statistics were derived and reported for the population residing outside of the territories and off reserve only. It was based on the consideration that the income prices and expenditure patterns could be quite different in the territories and on reserve and thus could make the interpretation of the LIM low-income statistics difficult. Since the 2016 Census there were research studies that analyzed the feasibility of defining LIM thresholds that include the population living in the territories and on reserve and examined the aspects that should be considered when interpreting low-income statistics based on this definition. With the guidance and support of such research the 2021 Census expanded the coverage of the LIM concept to all regions in Canada making it the only low-income concept that is applicable to the population living in the territories and on reserve. Low-income measure after tax (LIM-AT) - The Low-income measure after tax refers to a fixed percentage (50%) of median-adjusted after-tax income of private households. The household after-tax income is adjusted by an equivalence scale to take economies of scale into account. This adjustment for different household sizes reflects the fact that a household's needs increase but at a decreasing rate as the number of members increases. Using data from the 2021 Census of Population the line applicable to a household is defined as half the Canadian median of the adjusted household after-tax income multiplied by the square root of household size. The median is determined based on all persons in private households where low-income concepts are applicable. Thresholds for specific household sizes are presented in Table 2.4 Low-income measures thresholds (LIM-AT and LIM-BT) for private households of Canada 2020 Dictionary Census of Population 2021. When the unadjusted after-tax income of household pertaining to a person falls below the threshold applicable to the person based on household size the person is considered to be in low income according to LIM-AT. Since the LIM-AT threshold and household income are unique within each household low-income status based on LIM-AT can also be reported for households. Low-income cut-offs after tax (LICO-AT) - The Low-income cut-offs after tax refers to an income threshold defined using 1992 expenditure data below which economic families or persons not in economic families would likely have devoted a larger share of their after-tax income than average to the necessities of food shelter and clothing. More specifically the thresholds represented income levels at which these families or persons were expected to spend 20 percentage points or more of their after-tax income than average on food shelter and clothing. These thresholds have been adjusted to current dollars using the all-items Consumer Price Index (CPI). The LICO-AT has 35 cut-offs varying by seven family sizes and five different sizes of area of residence to account for economies of scale and potential differences in cost of living in communities of different sizes. These thresholds are presented in Table 2.5 Low-income cut-offs after tax (LICO-AT - 1992 base) for economic families and persons not in economic families 2020 Dictionary Census of Population 2021. When the after-tax income of an economic family member or a person not in an economic family falls below the threshold applicable to the person the person is considered to be in low income according to LICO-AT. Since the LICO-AT threshold and family income are unique within each economic family low-income status based on LICO-AT can also be reported for economic families. Prevalence of low income - The proportion or percentage of units whose income falls below a specified low-income line. 34: Economic family after-tax income decile group - The economic family income decile group provides a rough ranking of the economic situation of a person based on his or her relative position in the Canadian distribution of the adjusted after-tax income of economic families for all persons in private households. Using data from the 2021 Census of Population the population in private households is sorted according to its adjusted after-tax family income and then divided into 10 equal groups each containing 10% of the population. The decile cut-points are the levels of adjusted after-tax family income that define the 10 groups. For the 2021 Census the reference period for income data is the calendar year 2020 unless otherwise specified. 35: The Gini coefficient or Gini index is a measure of inequality that indicates how equally income is distributed for a given population. It measures how much an income distribution deviates from perfect equality. Values of the Gini coefficient can range from 0 to 1. A value of 0 indicates that income is equally divided among the population with all units receiving exactly the same amount of income. At the opposite extreme a Gini coefficient of 1 denotes a perfectly unequal distribution where one unit has all of the income in the economy. For the census Gini coefficients are calculated for three types of adjusted household income?market income total income and after tax income. Adjusted income is computed by dividing the household income by a factor equal to the square root of the household size (known as the equivalence scale). This adjustment for different household sizes takes into account economies of scale. It reflects the fact that the needs of a household increase but at a decreasing rate as the number of members increases. The P90/P10 ratio is a measure of inequality. It is the ratio of the 90th and the 10th percentile of the adjusted household after-tax income. The 90th percentile means 90% of the population has income that falls below this threshold. The 10th percentile means 10% of the population has income that falls below this threshold.