The indicator shows the average number of pupils per upper secondary school. For county schools, schools with tertiary vocational education are included. Pupils per school = (Pupils in upper secondary education)/(Upper secondary schools, county). Nominator: Pupils in upper secondary education, county, per 01.10. Source: VIGO. Denominator: Number of upper secondary schools owned by the county, per 01.10. As a upper secondary school units which are registered with the sectors 85.310 (Teaching in general subjects in upper secondary level) or 85.320 (Education in technical or other work oriented subjects in upper secondary level) in the Entity Registry. Schools with tertiary vocational education, sector 85.410, in the Entity Registry is also included. Source: VIGO, Entity Registry.