Year % of female population 1960 0.800774655514006 1961 0.821230274433164 1962 0.836580211933654 1963 0.849200168145544 1964 0.862875614297759 1965 0.882111388083101 1966 0.909611404743145 1967 0.944909029796399 1968 0.981603284120757 1969 1.01328647317517 1970 1.03710152507846 1971 1.05219044842574 1972 1.06243482093212 1973 1.07238639235676 1974 1.08750136803083 1975 1.11481642771991 1976 1.16153005552505 1977 1.22635664718912 1978 1.30307805302568 1979 1.38526392167905 1980 1.46347641429029 1981 1.53790583843154 1982 1.59838937493197 1983 1.65022101530252 1984 1.70895175384681 1985 1.77151597993335 1986 1.83879800975424 1987 1.91964780307769 1988 2.01803852520123 1989 2.12960502103577 1990 2.24668229868646 1991 2.35631304436538 1992 2.45633159206936 1993 2.54818442426236 1994 2.62155639388574 1995 2.65202160682916 1996 2.64256496515306 1997 2.62582582170653 1998 2.62478190731993 1999 2.65323676571019 2000 2.70422285523193 2001 2.77457383929424 2002 2.87109281642499 2003 2.98911424276926 2004 3.11184102991197 2005 3.21730651482024 2006 3.29748580322093 2007 3.35719683535321 2008 3.40726895787186 2009 3.46407413835108 2010 3.50632909169764 2011 3.51979124822803 2012 3.52183520328309 2013 3.51467228912878 2014 3.50616604313894 2015 3.50340023789133 2016 3.51174799487644 2017 3.54382787443377 2018 3.58496666154902 2019 3.60570043164432 2020 3.60530246771316 2021 3.58630596604411 2022 3.54815663683693 2023 3.50655691266167