Year % of female population ages 15+ (national estimate) 1960 30.61 1970 25.6 1971 19.71 1974 23.09 1978 23.79 1979 37.31 1980 30.28 1981 37.42 1983 38.29 1985 39.54 1986 38.96 1987 39.61 1988 42.27 1989 41.18 1990 37.87 1991 45.05 1992 44.2 1993 43.46 1994 44.3 1995 44.95 1996 46.8 1997 45.9 1998 46.96 1999 46.61 2000 47.02 2001 46.8 2002 47.46 2003 48.9 2004 50.8 2005 52.4 2006 53.14 2007 51.73 2008 52.55 2009 51.1 2010 49.662 2011 48.368 2012 50.788 2013 50.424 2014 51.222 2015 49.366 2016 49.604 2019 47.9 2020 46.621 2021 46.313 2022 47.275