Year % of female population 1960 4.02964431990121 1961 4.06760609818413 1962 4.07381280620463 1963 4.06567296185901 1964 4.04019687546362 1965 4.01939545425514 1966 4.06767623689351 1967 4.16040857270206 1968 4.22253471311514 1969 4.26687718368249 1970 4.33057238343013 1971 4.40713301567801 1972 4.46191010787175 1973 4.49825181554737 1974 4.52766626965793 1975 4.5476304532347 1976 4.57824342981704 1977 4.6265405439821 1978 4.68149644692569 1979 4.74576811130508 1980 4.82136021852395 1981 4.93462389628363 1982 5.06567431579087 1983 5.1616153318768 1984 5.23482531841153 1985 5.34492645385394 1986 5.50188045896925 1987 5.66145704574132 1988 5.82409031784872 1989 5.99106084512778 1990 6.15366660239509 1991 6.35234068605423 1992 6.58391899566738 1993 6.8200549313863 1994 7.07705433953401 1995 7.34046184921693 1996 7.60622096863801 1997 7.89950734046955 1998 8.19660428148103 1999 8.51225925030104 2000 8.87204156263827 2001 9.25431949030188 2002 9.65553058699106 2003 10.0644970187218 2004 10.4840826471749 2005 10.9034735445383 2006 11.3546758077333 2007 11.8315733345266 2008 12.2579715569619 2009 12.6574576562401 2010 13.0688562160239 2011 13.4475844083727 2012 13.8133072749634 2013 14.2208140792025 2014 14.6632883241736 2015 15.1078343825541 2016 15.5294223249232 2017 16.0532486872624 2018 16.6509313987423 2019 17.2815173725501 2020 18.0723057824208 2021 18.9216560308125 2022 19.7821122120008 2023 20.6927812985246