Year % of female population 1960 2.8959958053953 1961 2.88425433257372 1962 2.8723001078926 1963 2.86051089605772 1964 2.84899914930229 1965 2.83798935515288 1966 2.82765828221866 1967 2.81804144855252 1968 2.80894183331427 1969 2.81124866096424 1970 2.82377705331287 1971 2.83484724897564 1972 2.84433544997922 1973 2.85271601489067 1974 2.8525036834764 1975 2.84479527144122 1976 2.8106703025095 1977 2.75395823892356 1978 2.70497700317551 1979 2.66420803262978 1980 2.63029976498865 1981 2.60222680628597 1982 2.57849327023742 1983 2.55739514458305 1984 2.5363667342179 1985 2.5133087585951 1986 2.48911800567317 1987 2.45191609376948 1988 2.37133405857443 1989 2.28540357932894 1990 2.22414995834879 1991 2.16681575340779 1992 2.11669800736375 1993 2.07721308842458 1994 2.05011443014551 1995 2.03147816518764 1996 2.01543425670785 1997 1.99720737491858 1998 1.97330705509349 1999 1.96267866898394 2000 1.97706245970229 2001 2.00947766166727 2002 2.06119355885347 2003 2.13118282550373 2004 2.1993604371643 2005 2.25141081574286 2006 2.28996569756666 2007 2.31447088888441 2008 2.32651011021067 2009 2.33051618525195 2010 2.33510565557697 2011 2.34479721014477 2012 2.3632845572578 2013 2.39579852751854 2014 2.4395717119436 2015 2.48664941613856 2016 2.53215040441894 2017 2.57544345878361 2018 2.61690341527972 2019 2.65970868693411 2020 2.70798344019893 2021 2.76477359162709 2022 2.83153659858419 2023 2.90761973790203