Year % of female population 1960 27.140562070834 1961 27.1520507651432 1962 27.1643337917282 1963 27.1982117948366 1964 27.2555293678108 1965 27.2940176720132 1966 27.2977737659921 1967 27.2649741941532 1968 27.1946955657703 1969 27.0946428757099 1970 26.9630155484723 1971 26.8168221694567 1972 26.6845047132203 1973 26.5674674661757 1974 26.4827156873302 1975 26.4400080248551 1976 26.4181249471638 1977 26.3762453855491 1978 26.2929057012971 1979 26.1811657573209 1980 26.0407287846513 1981 25.89112520555 1982 25.7538676861886 1983 25.6213523122342 1984 25.4906216969629 1985 25.3845966907041 1986 25.2868437017392 1987 25.1424269917705 1988 24.9787444414649 1989 24.8010742699169 1990 24.5560885351055 1991 24.2782862129884 1992 24.0337782950737 1993 23.8296711298907 1994 23.6760124610592 1995 23.5895491374368 1996 23.5267255920165 1997 23.4541966099339 1998 23.3686939876965 1999 23.2640602248902 2000 23.1356526872655 2001 22.9880313660751 2002 22.8531347913286 2003 22.691266902609 2004 22.4727007929954 2005 22.2704520922176 2006 22.0758542547018 2007 21.8511639967781 2008 21.6138195910677 2009 21.3570078981633 2010 21.0816432357686 2011 20.8102599942641 2012 20.5555972752397 2013 20.3321019076236 2014 20.1381293503918 2015 19.976250386187 2016 19.8273516366902 2017 19.627653465509 2018 19.36793722442 2019 19.0655536222316 2020 18.7158160257015 2021 18.3789269445677 2022 18.0613305834235 2023 17.7307865317586