{"entity":{"iso2":"ES","iso3":"ESP","name":"Spain","slug":"spain"},"indicator":{"licence":"CC BY 4.0 (Our World in Data)","slug":"rate-of-twin-deliveries","source":"Human Multiple Births Database (2024) \u2013 processed by Our World in Data","source_url":"https://ourworldindata.org/grapher/rate-of-twin-deliveries","title":"Share of births that are twins","unit":"%"},"observations":[{"date":"1901-01-01","value":0.859},{"date":"1902-01-01","value":0.838},{"date":"1903-01-01","value":0.856},{"date":"1904-01-01","value":0.838},{"date":"1905-01-01","value":0.831},{"date":"1906-01-01","value":0.823},{"date":"1907-01-01","value":0.825},{"date":"1908-01-01","value":0.819},{"date":"1909-01-01","value":0.868},{"date":"1910-01-01","value":0.823},{"date":"1911-01-01","value":0.842},{"date":"1912-01-01","value":0.878},{"date":"1913-01-01","value":0.839},{"date":"1914-01-01","value":0.837},{"date":"1915-01-01","value":0.826},{"date":"1916-01-01","value":0.822},{"date":"1917-01-01","value":0.823},{"date":"1918-01-01","value":0.822},{"date":"1919-01-01","value":0.782},{"date":"1920-01-01","value":0.733},{"date":"1921-01-01","value":0.758},{"date":"1922-01-01","value":0.756},{"date":"1923-01-01","value":0.801},{"date":"1924-01-01","value":0.819},{"date":"1925-01-01","value":0.832},{"date":"1926-01-01","value":0.882},{"date":"1927-01-01","value":0.985},{"date":"1928-01-01","value":0.923},{"date":"1929-01-01","value":0.916},{"date":"1930-01-01","value":0.931},{"date":"1931-01-01","value":0.831},{"date":"1932-01-01","value":0.816},{"date":"1933-01-01","value":0.854},{"date":"1934-01-01","value":0.853},{"date":"1935-01-01","value":0.876},{"date":"1936-01-01","value":0.85},{"date":"1937-01-01","value":0.832},{"date":"1938-01-01","value":0.894},{"date":"1939-01-01","value":0.985},{"date":"1940-01-01","value":1.012},{"date":"1941-01-01","value":0.958},{"date":"1942-01-01","value":0.962},{"date":"1943-01-01","value":0.97},{"date":"1944-01-01","value":0.968},{"date":"1945-01-01","value":0.965},{"date":"1946-01-01","value":1.011},{"date":"1947-01-01","value":0.931},{"date":"1948-01-01","value":0.96},{"date":"1949-01-01","value":0.972},{"date":"1950-01-01","value":0.966},{"date":"1951-01-01","value":0.918},{"date":"1952-01-01","value":0.913},{"date":"1953-01-01","value":0.893},{"date":"1954-01-01","value":0.906},{"date":"1955-01-01","value":0.947},{"date":"1956-01-01","value":0.953},{"date":"1957-01-01","value":0.936},{"date":"1958-01-01","value":0.942},{"date":"1959-01-01","value":0.931},{"date":"1960-01-01","value":0.966},{"date":"1961-01-01","value":0.974},{"date":"1962-01-01","value":0.923},{"date":"1963-01-01","value":0.941},{"date":"1964-01-01","value":0.96},{"date":"1965-01-01","value":0.958},{"date":"1966-01-01","value":0.915},{"date":"1967-01-01","value":0.9},{"date":"1968-01-01","value":0.885},{"date":"1969-01-01","value":0.869},{"date":"1970-01-01","value":0.887},{"date":"1971-01-01","value":0.807},{"date":"1972-01-01","value":0.826},{"date":"1973-01-01","value":0.81},{"date":"1974-01-01","value":0.786},{"date":"1975-01-01","value":0.87},{"date":"1976-01-01","value":0.857},{"date":"1977-01-01","value":0.851},{"date":"1978-01-01","value":0.825},{"date":"1979-01-01","value":0.815},{"date":"1980-01-01","value":0.747},{"date":"1981-01-01","value":0.9},{"date":"1982-01-01","value":0.998},{"date":"1983-01-01","value":0.691},{"date":"1984-01-01","value":0.733},{"date":"1985-01-01","value":0.741},{"date":"1986-01-01","value":0.818},{"date":"1987-01-01","value":0.852},{"date":"1988-01-01","value":0.837},{"date":"1989-01-01","value":0.866},{"date":"1990-01-01","value":0.897},{"date":"1991-01-01","value":0.912},{"date":"1992-01-01","value":0.927},{"date":"1993-01-01","value":0.977},{"date":"1994-01-01","value":1.092},{"date":"1995-01-01","value":1.156},{"date":"1996-01-01","value":1.234},{"date":"1997-01-01","value":1.272},{"date":"1998-01-01","value":1.334},{"date":"1999-01-01","value":1.453},{"date":"2000-01-01","value":1.522},{"date":"2001-01-01","value":1.554},{"date":"2002-01-01","value":1.679},{"date":"2003-01-01","value":1.723},{"date":"2004-01-01","value":1.722},{"date":"2005-01-01","value":1.791},{"date":"2006-01-01","value":1.789},{"date":"2007-01-01","value":1.911},{"date":"2008-01-01","value":1.897},{"date":"2009-01-01","value":2.05},{"date":"2010-01-01","value":2.019},{"date":"2011-01-01","value":2.077},{"date":"2012-01-01","value":2.196},{"date":"2013-01-01","value":2.122},{"date":"2014-01-01","value":2.265},{"date":"2015-01-01","value":2.208},{"date":"2016-01-01","value":2.209},{"date":"2017-01-01","value":2.107},{"date":"2018-01-01","value":1.956},{"date":"2019-01-01","value":1.794},{"date":"2020-01-01","value":1.627},{"date":"2021-01-01","value":1.638}],"summary":{"latest_period":"2021-01-01","latest_value":1.638,"max":2.265,"mean":1.0819,"min":0.691,"of":23,"rank":5,"trend":"rising"}}