Year % of female population 1960 8.458781767446867 1961 8.686402824620295 1962 8.916530841796067 1963 9.151806731022885 1964 9.409067795312167 1965 9.705535540866885 1966 10.01789011702863 1967 10.308440213558242 1968 10.58118654861109 1969 10.832484945682362 1970 11.073352703168664 1971 11.314625442466877 1972 11.573718162717539 1973 11.834220466955186 1974 12.084324626492544 1975 12.328303413087358 1976 12.544242327309998 1977 12.765919065932119 1978 12.97527500035275 1979 13.142947931547122 1980 13.171732606164117 1981 13.023693630719409 1982 12.79079258377246 1983 12.516733169975376 1984 12.392006964152431 1985 12.449400396277063 1986 12.571866731749587 1987 12.757593126201767 1988 12.979560863547974 1989 13.199684194104918 1990 13.434030239796614 1991 13.673674521675341 1992 13.90876162039489 1993 14.16066180511762 1994 14.420927130671837 1995 14.70494223920036 1996 14.989371744211923 1997 15.253745022749195 1998 15.505800557309174 1999 15.747430963717479 2000 15.997211541934014 2001 16.248312047507046 2002 16.511957901928263 2003 16.757765592153135 2004 16.990469899726477 2005 17.21079719802971 2006 17.41301795942932 2007 17.59586122429745 2008 17.763041822047732 2009 17.940978136643565 2010 18.111044392838448 2011 18.353781642621218 2012 18.710021584940574 2013 19.11790541246912 2014 19.576964282013325 2015 20.054769522474807 2016 20.544872006551575 2017 21.035747029652942 2018 21.52319712373936 2019 22.026230861684777 2020 22.512357266368088 2021 22.90621261833309 2022 22.72320175772079 2023 22.69066569935388