{"entity":{"iso2":"PL","iso3":"POL","name":"Poland","slug":"poland"},"indicator":{"licence":"CC BY 4.0 (Our World in Data)","slug":"period-average-age-of-mothers","source":"Human Fertility Database (2025); UN, World Population Prospects (2024) \u2013 processed by Our World in Data","source_url":"https://ourworldindata.org/grapher/period-average-age-of-mothers","title":"Average age of mothers at childbirth","unit":"years"},"observations":[{"date":"1950-01-01","value":28.911},{"date":"1951-01-01","value":28.888},{"date":"1952-01-01","value":28.817},{"date":"1953-01-01","value":28.701},{"date":"1954-01-01","value":28.571},{"date":"1955-01-01","value":28.465},{"date":"1956-01-01","value":28.303},{"date":"1957-01-01","value":28.06},{"date":"1958-01-01","value":27.86},{"date":"1959-01-01","value":27.733},{"date":"1960-01-01","value":27.751},{"date":"1961-01-01","value":27.481},{"date":"1962-01-01","value":27.386},{"date":"1963-01-01","value":27.383},{"date":"1964-01-01","value":27.38},{"date":"1965-01-01","value":27.513},{"date":"1966-01-01","value":27.446},{"date":"1967-01-01","value":27.382},{"date":"1968-01-01","value":27.372},{"date":"1969-01-01","value":27.146},{"date":"1970-01-01","value":27.21},{"date":"1971-01-01","value":27.016},{"date":"1972-01-01","value":26.991},{"date":"1973-01-01","value":26.951},{"date":"1974-01-01","value":26.871},{"date":"1975-01-01","value":26.808},{"date":"1976-01-01","value":26.715},{"date":"1977-01-01","value":26.619},{"date":"1978-01-01","value":26.537},{"date":"1979-01-01","value":26.507},{"date":"1980-01-01","value":26.461},{"date":"1981-01-01","value":26.45},{"date":"1982-01-01","value":26.487},{"date":"1983-01-01","value":26.475},{"date":"1984-01-01","value":26.438},{"date":"1985-01-01","value":26.42},{"date":"1986-01-01","value":26.401},{"date":"1987-01-01","value":26.373},{"date":"1988-01-01","value":26.356},{"date":"1989-01-01","value":26.287},{"date":"1990-01-01","value":26.259},{"date":"1991-01-01","value":26.305},{"date":"1992-01-01","value":26.424},{"date":"1993-01-01","value":26.639},{"date":"1994-01-01","value":26.817},{"date":"1995-01-01","value":26.894},{"date":"1996-01-01","value":26.989},{"date":"1997-01-01","value":27.087},{"date":"1998-01-01","value":27.161},{"date":"1999-01-01","value":27.281},{"date":"2000-01-01","value":27.364},{"date":"2001-01-01","value":27.555},{"date":"2002-01-01","value":27.713},{"date":"2003-01-01","value":27.845},{"date":"2004-01-01","value":28.026},{"date":"2005-01-01","value":28.169},{"date":"2006-01-01","value":28.284},{"date":"2007-01-01","value":28.384},{"date":"2008-01-01","value":28.444},{"date":"2009-01-01","value":28.574},{"date":"2010-01-01","value":28.734},{"date":"2011-01-01","value":28.85},{"date":"2012-01-01","value":28.911},{"date":"2013-01-01","value":28.957},{"date":"2014-01-01","value":29.099},{"date":"2015-01-01","value":29.196},{"date":"2016-01-01","value":29.303},{"date":"2017-01-01","value":29.436},{"date":"2018-01-01","value":29.506},{"date":"2019-01-01","value":29.638},{"date":"2020-01-01","value":29.745},{"date":"2021-01-01","value":29.842},{"date":"2022-01-01","value":29.897},{"date":"2023-01-01","value":29.889}],"summary":{"latest_period":"2023-01-01","latest_value":29.889,"max":29.897,"mean":27.7046,"min":26.259,"of":236,"rank":88,"trend":"rising"}}