Age is calculated as the difference in years between the calendar year worked, and birth year.
Our workforce is defined as the number of individuals who work full time in an industry for at least three months in a calendar year. These individuals are then linked to the region they spend the most time living in during that year.
Existing workforce are individuals who worked in the same industry the previous calendar year. New entrants are workers in their first year working in that industry. Returning workers are workers who have some work experience in the industry, but were not working in the industry the previous year.
Access to the anonymised data used in this study was provided by Statistics New Zealand in accordance with security and confidentiality provisions of the Statistics Act 1975, and secrecy provisions of the Tax Administration Act 1994. The findings are not Official Statistics. The results in this paper are the work of the authors, not Statistics NZ, and have been confidentialised to protect individuals, households, businesses, and other organisations from identification. Read our full disclaimer here.