Year % of female population 1960 6.50793876554448 1961 6.43088606127359 1962 6.38336043311199 1963 6.35394256955659 1964 6.33739617269178 1965 6.33117091931895 1966 6.34200654994465 1967 6.37350974708065 1968 6.42290562642529 1969 6.49527859799051 1970 6.652608794873 1971 6.88525301195318 1972 7.13279373434243 1973 7.39644543817775 1974 7.67553911841102 1975 7.96697015244257 1976 8.24863503507134 1977 8.50324135266301 1978 8.75796738139858 1979 9.04353345619318 1980 9.29294966804943 1981 9.43396879965708 1982 9.48948938674404 1983 9.48599730384181 1984 9.43322585551839 1985 9.4055209584298 1986 9.46288915396798 1987 9.55847519313443 1988 9.60599228521928 1989 9.54981311211696 1990 9.39519305153699 1991 9.15056629172661 1992 8.81685125667646 1993 8.44299437822838 1994 8.08806176717332 1995 7.7934600896399 1996 7.61453055782222 1997 7.59754195183091 1998 7.69939936791337 1999 7.83879377452235 2000 7.9711125418376 2001 8.07812095431848 2002 8.16219961196124 2003 8.27743517946506 2004 8.47669490293661 2005 8.74134207732365 2006 9.04066789334899 2007 9.33546483205527 2008 9.56986371533382 2009 9.70061458842171 2010 9.75126725521726 2011 9.72395981028319 2012 9.5864848382833 2013 9.35259138742351 2014 9.04650081313194 2015 8.66156298505286 2016 8.22601541837222 2017 7.81593804646515 2018 7.53674442068092 2019 7.25628793658812 2020 6.93405811001044 2021 6.69863826357095 2022 6.47937058205695 2023 6.28659543408439