{"entity":{"iso2":"JP","iso3":"JPN","name":"Japan","slug":"japan"},"indicator":{"licence":"CC BY 4.0 (Our World in Data)","slug":"period-average-age-of-mothers-birth-order","source":"Our World in Data","source_url":"https://ourworldindata.org/grapher/period-average-age-of-mothers-birth-order","title":"Period average age of mothers birth order","unit":null},"observations":[{"date":"1968-01-01","value":25.88},{"date":"1969-01-01","value":25.85},{"date":"1970-01-01","value":25.81},{"date":"1971-01-01","value":25.75},{"date":"1972-01-01","value":25.68},{"date":"1973-01-01","value":25.65},{"date":"1974-01-01","value":25.63},{"date":"1975-01-01","value":25.69},{"date":"1976-01-01","value":25.76},{"date":"1977-01-01","value":25.88},{"date":"1978-01-01","value":25.96},{"date":"1979-01-01","value":26.02},{"date":"1980-01-01","value":26.07},{"date":"1981-01-01","value":26.16},{"date":"1982-01-01","value":26.24},{"date":"1983-01-01","value":26.3},{"date":"1984-01-01","value":26.38},{"date":"1985-01-01","value":26.5},{"date":"1986-01-01","value":26.64},{"date":"1987-01-01","value":26.79},{"date":"1988-01-01","value":26.91},{"date":"1989-01-01","value":27.03},{"date":"1990-01-01","value":27.15},{"date":"1991-01-01","value":27.23},{"date":"1992-01-01","value":27.37},{"date":"1993-01-01","value":27.51},{"date":"1994-01-01","value":27.64},{"date":"1995-01-01","value":27.75},{"date":"1996-01-01","value":27.88},{"date":"1997-01-01","value":27.94},{"date":"1998-01-01","value":27.98},{"date":"1999-01-01","value":27.99},{"date":"2000-01-01","value":28.03},{"date":"2001-01-01","value":28.05},{"date":"2002-01-01","value":28.14},{"date":"2003-01-01","value":28.35},{"date":"2004-01-01","value":28.5},{"date":"2005-01-01","value":28.63},{"date":"2006-01-01","value":28.71},{"date":"2007-01-01","value":28.85},{"date":"2008-01-01","value":28.92},{"date":"2009-01-01","value":29.09},{"date":"2010-01-01","value":29.27},{"date":"2011-01-01","value":29.37},{"date":"2012-01-01","value":29.58},{"date":"2013-01-01","value":29.74},{"date":"2014-01-01","value":29.87},{"date":"2015-01-01","value":30.01},{"date":"2016-01-01","value":30.08},{"date":"2017-01-01","value":30.13},{"date":"2018-01-01","value":30.17},{"date":"2019-01-01","value":30.21},{"date":"2020-01-01","value":30.29},{"date":"2021-01-01","value":30.49},{"date":"2022-01-01","value":30.59},{"date":"2023-01-01","value":30.71}],"summary":{"latest_period":"2023-01-01","latest_value":30.71,"max":30.71,"mean":27.8,"min":25.63,"of":33,"rank":7,"trend":"rising"}}