Year % of female population 1960 37.7368695001545 1961 38.612556412769 1962 39.4606537385524 1963 40.3942843375556 1964 41.4232338033887 1965 42.4111667291451 1966 43.3212417184736 1967 44.1182484054374 1968 44.7320045457241 1969 45.1042728763861 1970 45.3060125146246 1971 45.4332520995829 1972 45.4878435374797 1973 45.4659221219524 1974 45.3741671825253 1975 45.2035556632214 1976 44.9507013786869 1977 44.6162576973999 1978 44.2153713559712 1979 43.7743825795313 1980 43.3533898165356 1981 42.9955060686173 1982 42.6839291901632 1983 42.411976742278 1984 42.182293580771 1985 42.005011098231 1986 41.8797892453562 1987 41.7688143569898 1988 41.6261288892369 1989 41.3769111376733 1990 41.0222884394408 1991 40.6261379010557 1992 40.1839725308967 1993 39.6832781369921 1994 39.1224542251924 1995 38.5184351118015 1996 37.8945047755786 1997 37.2428675078601 1998 36.5233908244521 1999 35.720811792799 2000 34.7530043730161 2001 33.6568113813056 2002 32.5570320423539 2003 31.4548012551474 2004 30.3738380027483 2005 29.3658238482079 2006 28.5229251126864 2007 27.9316104011601 2008 27.6025829905363 2009 27.5071439510812 2010 27.5323397832241 2011 27.5367642921628 2012 27.5873364624562 2013 27.7781293518214 2014 28.0885659114553 2015 28.4988267106251 2016 28.9866308730469 2017 29.5369009808778 2018 30.1319850533171 2019 30.7154122613115 2020 31.1301044691648 2021 31.3379929853192 2022 31.3582853735261 2023 31.142675398816