{"metric":"class_size_secondary","title":"Average secondary class size","unit":"pupils","geography":"E92000001","publisher":"Department for Education","publication":"Explore Education Statistics: absence, SEN, attainment, apprenticeships, NEET, class sizes","publication_url":"https://explore-education-statistics.service.gov.uk/","licence":"Contains public sector information licensed under the Open Government Licence v3.0.","series":[{"period_label":"2015/16 academic year","period_start":"2015-09-01","period_end":"2016-08-31","value":20.381156420008665,"status":"final","release_label":"Explore Education Statistics: releases to August 2026","release_date":"2026-08-04"},{"period_label":"2016/17 academic year","period_start":"2016-09-01","period_end":"2017-08-31","value":20.82785767936128,"status":"final","release_label":"Explore Education Statistics: releases to August 2026","release_date":"2026-08-04"},{"period_label":"2017/18 academic year","period_start":"2017-09-01","period_end":"2018-08-31","value":21.23496318300603,"status":"final","release_label":"Explore Education Statistics: releases to August 2026","release_date":"2026-08-04"},{"period_label":"2018/19 academic year","period_start":"2018-09-01","period_end":"2019-08-31","value":21.68648777612485,"status":"final","release_label":"Explore Education Statistics: releases to August 2026","release_date":"2026-08-04"},{"period_label":"2019/20 academic year","period_start":"2019-09-01","period_end":"2020-08-31","value":21.9645680758988,"status":"final","release_label":"Explore Education Statistics: releases to August 2026","release_date":"2026-08-04"},{"period_label":"2020/21 academic year","period_start":"2020-09-01","period_end":"2021-08-31","value":22.27898553214887,"status":"final","release_label":"Explore Education Statistics: releases to August 2026","release_date":"2026-08-04"},{"period_label":"2021/22 academic year","period_start":"2021-09-01","period_end":"2022-08-31","value":22.277940023255184,"status":"final","release_label":"Explore Education Statistics: releases to August 2026","release_date":"2026-08-04"},{"period_label":"2022/23 academic year","period_start":"2022-09-01","period_end":"2023-08-31","value":22.373175914047465,"status":"final","release_label":"Explore Education Statistics: releases to August 2026","release_date":"2026-08-04"},{"period_label":"2023/24 academic year","period_start":"2023-09-01","period_end":"2024-08-31","value":22.43740069802227,"status":"final","release_label":"Explore Education Statistics: releases to August 2026","release_date":"2026-08-04"},{"period_label":"2024/25 academic year","period_start":"2024-09-01","period_end":"2025-08-31","value":22.51481516131619,"status":"final","release_label":"Explore Education Statistics: releases to August 2026","release_date":"2026-08-04"},{"period_label":"2025/26 academic year","period_start":"2025-09-01","period_end":"2026-08-31","value":22.615110722218482,"status":"final","release_label":"Explore Education Statistics: releases to August 2026","release_date":"2026-08-04"}]}