Year % of female population 1960 8.72603712494422 1961 8.71607716143511 1962 8.72476508665095 1963 8.7029707947347 1964 8.57825042843748 1965 8.33220283135693 1966 7.96139032545471 1967 7.47762831611459 1968 6.96249934107275 1969 6.51810590706492 1970 6.21814337151174 1971 6.10909348144911 1972 6.20413515583161 1973 6.45741689930191 1974 6.78628747117602 1975 7.12784653818649 1976 7.43870023210833 1977 7.70330746009243 1978 7.93206751246176 1979 8.14256305842392 1980 8.31619460432485 1981 8.42743240913722 1982 8.47164777027698 1983 8.46863530936509 1984 8.45585898350435 1985 8.45517287234343 1986 8.48533484065509 1987 8.52537448890697 1988 8.5328490538287 1989 8.48802691995879 1990 8.39628403214142 1991 8.25267780747251 1992 7.58942676173519 1993 6.61303342819591 1994 5.90623161315991 1995 5.69200801970331 1996 6.10720175934534 1997 6.52178572606925 1998 6.79140186277801 1999 7.06313709565224 2000 7.36718214246341 2001 7.65828140447169 2002 7.91008220019259 2003 8.07345151276095 2004 8.09945353130054 2005 8.04870911124261 2006 7.99317047986353 2007 7.89176583722834 2008 7.75713692941949 2009 7.61560483711581 2010 7.45110154570683 2011 7.26370173146985 2012 7.07834858548605 2013 6.94852881619517 2014 6.8431081197281 2015 6.72663458757096 2016 6.61726717361995 2017 6.45814735582796 2018 6.19862216871858 2019 5.9461745718831 2020 5.81829820836248 2021 5.78305135161255 2022 5.84782658352178 2023 5.98836237628317