In OECD databases, the administrative data are used as input for datasets on the number of “professionally active” workers, while the LFS data are used to indicate the number of “practising” professionals. The OECD definition excludes those working in jobs where the relevant qualifications are not required, and those that are unemployed, retired or working abroad. These groups cannot be properly filtered out of the Israeli data, as an approximation the “professionally active” data for Israel represent all those aged less than 65 years licenced to practice.