Year % of female population ages 15+ (national estimate) 1960 27.92 1966 31.42 1970 38.36 1975 46.68 1979 28.9 1980 42.76 1981 42.298 1982 43.417 1983 42.822 1984 40.67 1985 41.916 1986 43.098 1987 44.957 1988 45.019 1989 46.558 1990 46.981 1991 47.12 1992 47.118 1993 47.082 1994 47.842 1995 48.389 1996 48.871 1997 49.755 1998 47.059 1999 47.623 2000 49.386 2001 50.014 2002 50.429 2003 49.514 2004 50.736 2005 50.817 2006 51.044 2007 50.949 2008 50.65 2009 49.83 2010 50.042 2011 50.226 2012 50.452 2013 50.768 2014 51.947 2015 52.444 2016 52.654 2017 53.159 2018 53.272 2019 53.851 2020 53.184 2021 53.701 2022 55.041 2023 56.074