Year % of female population ages 15+ (national estimate) 1960 23.82 1970 27.69 1980 55.22 1981 56.37 1982 56.45 1983 57.63 1984 58.14 1985 59.55 1986 62.31 1987 63.84 1988 63.74 1989 62.41 1990 62.378 1991 62.33 1992 62.234 1993 62.251 1994 62.692 1995 64.536 1996 66.107 1997 67.753 1998 69.175 1999 69.238 2000 69.215 2001 69.496 2002 70.475 2003 69.11 2004 69.086 2005 68.517 2006 68.258 2007 69.386 2008 70.597 2009 69.717 2010 68.658 2011 68.634 2012 68.437 2013 68.361 2014 68.183 2015 68.163 2016 67.658 2017 67.047 2018 67.142 2019 64.521 2020 61.978 2021 60.714 2022 62.161 2023 62.131