Year % of female population 1960 11.5896341526678 1961 11.688884348634 1962 11.7322351398662 1963 11.7843906700278 1964 11.9242678342376 1965 12.135621125528 1966 12.3601472686615 1967 12.5839426951201 1968 12.776170659973 1969 12.9593412101546 1970 13.2065012826068 1971 13.474955169638 1972 13.7135806015045 1973 13.9738160333047 1974 14.2636309982504 1975 14.6222374349249 1976 15.0304195754438 1977 15.4035563683688 1978 15.7159119959903 1979 15.9712937770441 1980 16.1316968426606 1981 16.1923912265392 1982 16.2206515007789 1983 16.2527062940907 1984 16.3192303041411 1985 16.4618317630563 1986 16.6511349968344 1987 16.8088534174914 1988 16.9343320066773 1989 17.0481132191903 1990 17.1161890073164 1991 17.1213682305826 1992 17.1238508768761 1993 17.1560478534028 1994 17.2170905197637 1995 17.2925454651257 1996 17.3823848462139 1997 17.492520889454 1998 17.6083156406077 1999 17.7054091717221 2000 17.7846070564311 2001 17.8760554793972 2002 17.921392639024 2003 17.9353289959425 2004 18.0006599261504 2005 18.106192257495 2006 18.2582160535868 2007 18.4236867418755 2008 18.5679000330712 2009 18.7285637120714 2010 18.8914583625621 2011 19.0821284338172 2012 19.2998043669774 2013 19.4823606035299 2014 19.6449428155183 2015 19.7883204116582 2016 19.9121721408999 2017 20.0512960759241 2018 20.2111254241245 2019 20.3794536010659 2020 20.5261511574037 2021 20.7366581707888 2022 21.0381980878797 2023 21.3480211406096