{"metric":"obr_forecast_nics","title":"National Insurance forecasts","unit":"£ billion","geography":"K02000001","publisher":"OBR","publication":"Historical official forecasts database","publication_url":"https://obr.uk/data/","licence":"Contains public sector information licensed under the Open Government Licence v3.0.","series":[{"period_label":"Year ending March 2009","period_start":"2008-04-01","period_end":"2009-03-31","value":96.613,"status":"final","release_label":"Historical official forecasts database, March 2026","release_date":"2026-03-26"},{"period_label":"Year ending March 2010","period_start":"2009-04-01","period_end":"2010-03-31","value":96.638,"status":"final","release_label":"Historical official forecasts database, March 2026","release_date":"2026-03-26"},{"period_label":"Year ending March 2011","period_start":"2010-04-01","period_end":"2011-03-31","value":97.747,"status":"final","release_label":"Historical official forecasts database, March 2026","release_date":"2026-03-26"},{"period_label":"Year ending March 2012","period_start":"2011-04-01","period_end":"2012-03-31","value":101.597,"status":"final","release_label":"Historical official forecasts database, March 2026","release_date":"2026-03-26"},{"period_label":"Year ending March 2013","period_start":"2012-04-01","period_end":"2013-03-31","value":104.483,"status":"final","release_label":"Historical official forecasts database, March 2026","release_date":"2026-03-26"},{"period_label":"Year ending March 2014","period_start":"2013-04-01","period_end":"2014-03-31","value":107.306,"status":"final","release_label":"Historical official forecasts database, March 2026","release_date":"2026-03-26"},{"period_label":"Year ending March 2015","period_start":"2014-04-01","period_end":"2015-03-31","value":110.26,"status":"final","release_label":"Historical official forecasts database, March 2026","release_date":"2026-03-26"},{"period_label":"Year ending March 2016","period_start":"2015-04-01","period_end":"2016-03-31","value":114.061,"status":"final","release_label":"Historical official forecasts database, March 2026","release_date":"2026-03-26"},{"period_label":"Year ending March 2017","period_start":"2016-04-01","period_end":"2017-03-31","value":125.784,"status":"final","release_label":"Historical official forecasts database, March 2026","release_date":"2026-03-26"},{"period_label":"Year ending March 2018","period_start":"2017-04-01","period_end":"2018-03-31","value":131.547,"status":"final","release_label":"Historical official forecasts database, March 2026","release_date":"2026-03-26"},{"period_label":"Year ending March 2019","period_start":"2018-04-01","period_end":"2019-03-31","value":137.461,"status":"final","release_label":"Historical official forecasts database, March 2026","release_date":"2026-03-26"},{"period_label":"Year ending March 2020","period_start":"2019-04-01","period_end":"2020-03-31","value":143.674,"status":"final","release_label":"Historical official forecasts database, March 2026","release_date":"2026-03-26"},{"period_label":"Year ending March 2021","period_start":"2020-04-01","period_end":"2021-03-31","value":144.213,"status":"final","release_label":"Historical official forecasts database, March 2026","release_date":"2026-03-26"},{"period_label":"Year ending March 2022","period_start":"2021-04-01","period_end":"2022-03-31","value":160.846,"status":"final","release_label":"Historical official forecasts database, March 2026","release_date":"2026-03-26"},{"period_label":"Year ending March 2023","period_start":"2022-04-01","period_end":"2023-03-31","value":179.368,"status":"final","release_label":"Historical official forecasts database, March 2026","release_date":"2026-03-26"},{"period_label":"Year ending March 2024","period_start":"2023-04-01","period_end":"2024-03-31","value":179.081,"status":"final","release_label":"Historical official forecasts database, March 2026","release_date":"2026-03-26"},{"period_label":"Year ending March 2025","period_start":"2024-04-01","period_end":"2025-03-31","value":171.402,"status":"final","release_label":"Historical official forecasts database, March 2026","release_date":"2026-03-26"}]}