{"metric":"internal_migration_net_local","unit":"people","geography":"K04000001","note":"One value per period: the newest published figure for that period. Use /vintages for every published estimate.","series":[{"period_start":"2024-07-01","period_end":"2025-06-30","period_label":"Year to mid-2025","value":-5940,"status":"estimated","vintage":"2026-07-29","release_label":"Population estimates for England and Wales, mid-2025"}]}