Labour Force Survey 1975, annual file

Statistics Norway has carried out official quarterly Labor Force Surveys (AKU) from 1 quarter 1972. The purpose is to provide the labor authorities and others with the occupational structure of population and development over time. The surveys will provide the basis and statistical material for occupational forecasting and labor market research. In the AKU respondents are first interviewed in two consecutive quarters, then there is a delay of two quarters, and then the respondent are interviewed again for two consecutive quarters. The sample was approximately 10- 11,000 respondents each quarter until 1988. Labour Force Survey 1975 is the fourth complete annual AKU. Originally it was intended that the AKU would be an analytical supplement to the monthly employment statistics which were based on the insurance fund membership. The health insurance-based statistics, however fell away when health insurance was included in the National Insurance Scheme from 1 January 1971. AKU has gradually evolved to become the main source of knowledge about the labor market of the state. In 1975 the SSB on the sampling plan for the surveys, see Art.37: About the use of samples at the office for interview surveys, Statistics Norway (Steinar Tamsfoss), and SES 33: Sampling Methods Applied by Statistics Norways sample surveys (Ib Thomsen). Meanwhile, the method of estimation for inflating the national figures changed, so that there are adequate numbers of regions from 1975. The reorganization in 1975 meant that the interview was carried out differently in groups than before and after. This meant, among other things, a break in the panel structure of the AKU.

挪威统计局（Statistics Norway，简称SSB）自1972年第一季度起，开展官方季度劳动力调查（Labor Force Surveys，简称AKU）。本调查旨在为劳动主管部门及其他相关机构提供人口职业结构及其随时间演变的统计数据，同时为职业预测与劳动力市场研究提供基础支撑与统计素材。
AKU的调查对象首先将在连续两个季度内接受访问，随后经历两个季度的间隔期，之后再次接受连续两个季度的回访。1988年以前，该调查每季度的样本规模约为10000至11000名调查对象。1975年开展的季度劳动力调查为第四次完整的年度AKU调查项目。
AKU最初的设计定位为以保险基金参保人员为统计基础的月度就业统计的分析补充工具，但1971年1月1日健康保险纳入全国保险计划后，基于健康保险参保数据的月度就业统计体系便停止使用。如今，AKU已逐步发展为该国劳动力市场相关信息的核心统计来源。
1975年，挪威统计局（SSB）制定了本次调查的抽样方案，相关细节详见第37号文件《访谈调查办公室的样本使用规范》（作者：Steinar Tamsfoss，挪威统计局）以及SES 33号文件《挪威统计局抽样调查所采用的抽样方法》（作者：Ib Thomsen）。与此同时，全国总数据的加权扩样估算方法也进行了优化调整，自1975年起，各地区的样本量均能够满足统计分析需求。
1975年的此次机构调整使得不同组别调查对象的访问流程与前后时期均存在差异，这也直接导致AKU的追踪调查面板结构出现了断点。