Year % of females ages 15 and above 1972 24.6529693603516 1973 25.1435604095459 1974 25.6541004180908 1975 26.2211894989014 1976 27.0148601531982 1977 27.4699001312256 1978 28.2506103515625 1979 29.0399208068848 1980 29.9773006439209 1981 30.9325294494629 1982 31.8675804138184 1983 33.0816688537598 1984 34.2280693054199 1985 35.4344596862793 1986 36.789249420166 1987 37.7833595275879 1988 39.0256195068359 1989 40.2302398681641 1990 43.1370811462402 1991 44.9733505249023 1992 45.9505805969238 1993 46.442268371582 1994 47.4562301635742 1995 49.5503883361816 1996 51.5702018737793 1997 52.4052085876465 1998 53.85205078125 1999 55.2880516052246 2000 56.7147789001465 2001 58.0578117370605 2002 58.7309112548828 2003 61.7084197998047 2004 62.7867012023926 2005 62.913028717041 2006 63.8168601989746 2007 64.1904907226562 2008 65.0695724487305 2009 64.9908218383789 2010 66.0611724853516 2011 66.2257766723633 2012 69.2763900756836 2013 66.6288604736328 2014 70.2232894897461 2015 69.0115203857422 2016 70.5940399169922 2017 72.0637969970703 2018 68.7706298828125 2019 69.2698135375977 2020 69.73779296875 2021 70.210693359375 2022 70.7188568115234