Every Census since 1911 has included a question in which respondents reported their highest level of educational achievement. In the 1966 Census, respondents were asked to provide details of the qualification title and the institution at which it was obtained. In all Censuses since 1966, people aged 15 years and over have been asked whether they had obtained a qualification and, if so, the qualification name and field of study. The 1971 Census also asked whether the person was currently studying for a qualification and, if so, its name. Prior to 2001, this information was restricted to post-school educational qualifications. From 2001, the information includes all qualifications (both school and post-school) and the level and field of the highest qualification.
Qualifications data are used to assess the skill level of the labour force, and potential labour force, and are valuable for the planning and implementation of labour force training programs.
See also Level of Highest Educational Attainment (HEAP), Non-School Qualification: Field of Study (QALFP), Non-School Qualification: Level of Education (QALLP).