{"entity":{"iso2":"CH","iso3":"CHE","name":"Switzerland","slug":"switzerland"},"indicator":{"licence":"CC BY 4.0 (Our World in Data)","slug":"period-average-age-of-mothers-birth-order","source":"Human Fertility Database (2025) \u2013 processed by Our World in Data","source_url":"https://ourworldindata.org/grapher/period-average-age-of-mothers-birth-order","title":"Average age of mothers at childbirth by birth order","unit":"years"},"observations":[{"date":"1998-01-01","value":28.26},{"date":"1999-01-01","value":28.27},{"date":"2000-01-01","value":28.43},{"date":"2001-01-01","value":28.62},{"date":"2002-01-01","value":28.73},{"date":"2003-01-01","value":28.85},{"date":"2004-01-01","value":29.09},{"date":"2005-01-01","value":29.23},{"date":"2006-01-01","value":29.37},{"date":"2007-01-01","value":29.55},{"date":"2008-01-01","value":29.69},{"date":"2009-01-01","value":29.85},{"date":"2010-01-01","value":29.99},{"date":"2011-01-01","value":30.16},{"date":"2012-01-01","value":30.26},{"date":"2013-01-01","value":30.4},{"date":"2014-01-01","value":30.58},{"date":"2015-01-01","value":30.63},{"date":"2016-01-01","value":30.68},{"date":"2017-01-01","value":30.73},{"date":"2018-01-01","value":30.9},{"date":"2019-01-01","value":31.02},{"date":"2020-01-01","value":31.09},{"date":"2021-01-01","value":31.22},{"date":"2022-01-01","value":31.23},{"date":"2023-01-01","value":31.31}],"summary":{"latest_period":"2023-01-01","latest_value":31.31,"max":31.31,"mean":29.9285,"min":28.26,"of":33,"rank":4,"trend":"rising"}}