Year % of female population 1960 12.5594479877315 1961 12.7010723747901 1962 12.8248548703756 1963 12.9282755243677 1964 13.0068226478355 1965 13.0693167792012 1966 13.1235530787039 1967 13.1591164185473 1968 13.1748291299948 1969 13.1810533482183 1970 13.172093701231 1971 13.1466371968023 1972 13.1337342799319 1973 13.1472127830426 1974 13.1879424434907 1975 13.2765845515179 1976 13.4158801627847 1977 13.575148320364 1978 13.7345054576919 1979 13.8784274065423 1980 13.9875369547301 1981 14.0553948570463 1982 14.0886898553263 1983 14.0838105832153 1984 14.0403836225211 1985 13.9660352534157 1986 13.8683999197763 1987 13.7835523453624 1988 13.8607266476304 1989 13.9917310860146 1990 14.0401059116495 1991 14.0056235489214 1992 13.7827925738206 1993 13.5173796483744 1994 13.5673545894026 1995 13.8575211454202 1996 14.2172696816882 1997 14.7230613251113 1998 15.2332675417559 1999 15.3772306901072 2000 15.2148044794321 2001 15.0380190192456 2002 14.8198201546266 2003 14.5969360832456 2004 14.4877629353881 2005 14.4797736442848 2006 14.5010472359496 2007 14.5577377079719 2008 14.5902271982995 2009 14.4898720709613 2010 14.1631364493466 2011 13.7409395692368 2012 13.3924605338958 2013 13.1735199139243 2014 13.330597375174 2015 13.6860610626865 2016 14.2607974119859 2017 15.2362149161342 2018 16.0544692159491 2019 16.3865288811636 2020 16.3603781189254 2021 16.0863704767113 2022 15.5090035155772 2023 14.6295851280868