Year % of female population 1960 4.55531794398739 1961 4.55756763836446 1962 4.56354613719711 1963 4.57874189456818 1964 4.60001664916166 1965 4.62381910736059 1966 4.65485580940824 1967 4.69039013049602 1968 4.72681680635369 1969 4.76286139989621 1970 4.79583113047442 1971 4.82340808754595 1972 4.84786033894568 1973 4.86582105059228 1974 4.86941216362175 1975 4.86023756878739 1976 4.84080618133477 1977 4.81157137905067 1978 4.7784323664476 1979 4.7513549679142 1980 4.73481243773015 1981 4.72795507426106 1982 4.7319170083682 1983 4.74102495024724 1984 4.74794616225504 1985 4.75107380436963 1986 4.74732391598603 1987 4.71731885112673 1988 4.71737552025929 1989 4.66146504134353 1990 4.48304461520026 1991 4.30792433552161 1992 4.15779532158234 1993 4.05206322460331 1994 4.01166899269292 1995 4.01397262927511 1996 4.0226178397881 1997 4.02910008819261 1998 4.05089356120216 1999 4.07681275259504 2000 4.09427788873963 2001 4.1130122649064 2002 4.13293709696671 2003 4.15936331731669 2004 4.1977452123649 2005 4.24718637212813 2006 4.30944130065947 2007 4.38734960108 2008 4.4766520215766 2009 4.5725324006633 2010 4.68745240755339 2011 4.81549164359595 2012 4.93885249592599 2013 5.05553478625061 2014 5.1496825535735 2015 5.22669830977818 2016 5.28271182222457 2017 5.30752509700265 2018 5.31152669756596 2019 5.29902652699499 2020 5.26326643562323 2021 5.1973326396064 2022 5.10070024721228 2023 4.99249717890173