Income Study 2000, household file

Statistics Norway (SSB) conducted wide-ranging Income Studies in 1958, 1962, 1967, 1970, 1973, 1976, 1979 and 1982. As of 1984, SSB moved to a system of annual surveys. This entailed changes, more in terms of sample size and sampling method than the type of information that was gathered. The information is mainly decided by what is available in public tax assessment records.

The Income Studies should not be considered ordinary sample surveys, they are based on a sample drawn from registers from the Norwegian equivalent to the Internal Revenue Service. This means that foreign citizens would be part of the sample if they are registered in the Central Person Register, which they will normally be if they have valid work and residence permits. Children born during the year in question will be included in the sample regardless of birth date, and so will persons dying that the year.

The objective of the Income Studies have been to elucidate the income conditions for the entire population and for different groups. A main point is to gather statistics on households that live and eat together, as well as getting an overview of the distribution of persons and households by size of income, socio-economic groups, household type, geography etc. Another objective is to collect income and fortune data as a backdrop for the Level of Living and Consumer surveys. Information is gathered om all types of income, fortune, taxes, income for individuals and households. Some information is added from other registers (amongst others, marital status and family composition, whilst information on household composition is gathered through interviews. In addition, one generally includes information on education, profession and occupation for individuals and household composition, type and primary income recipients for the households.

There exist both a household file and a person file. These are documented separately. This is the household file.

挪威统计局（Statistics Norway，简称SSB）分别于1958年、1962年、1967年、1970年、1973年、1976年、1979年及1982年开展了范围广泛的收入研究。自1984年起，SSB转为年度调查体系。这一转变带来了若干变化，主要体现在样本量与抽样方法上，而非所收集信息的类型。信息内容主要取决于公共纳税评估记录中可获取的数据。

收入研究并非普通的抽样调查，其样本来源于挪威国内与美国国税局（Internal Revenue Service）职能相当的机构所维护的登记册。这意味着，若外国公民在中央人口登记册（Central Person Register）中登记——通常持有有效工作及居留许可者均会登记——则其会被纳入样本。

收入研究的目标在于阐明全体人口及不同群体的收入状况。其核心要点包括收集共同生活及就餐家庭的统计数据，以及获取按收入规模、社会经济群体、家庭类型、地理区域等维度划分的个人与家庭分布概况。另一目标是收集收入与财富数据，为生活水平调查及消费者调查提供背景支撑。所收集的信息涵盖各类收入、财富、税收，以及个人与家庭的收入情况。部分信息来自其他登记册（例如婚姻状况与家庭构成），而家庭组成信息则通过访谈收集。此外，通常还包含个人的教育、专业及职业信息，以及家庭的构成、类型与主要收入来源者信息。

该数据集包含家庭文件与人文件两类，二者分别记录，本文件为家庭文件。