Year % of female population 1960 0.414063765819936 1961 0.454553462886943 1962 0.494456878155416 1963 0.535619556103154 1964 0.571525194453838 1965 0.600826764405617 1966 0.628836900613904 1967 0.657775133455633 1968 0.68802408084283 1969 0.717683523113388 1970 0.75010395010395 1971 0.785257213506424 1972 0.819617400594264 1973 0.846882908513489 1974 0.87269161627717 1975 0.905656722200697 1976 0.950536877310332 1977 1.00265783903363 1978 1.07174518743668 1979 1.16066647768434 1980 1.25043091290858 1981 1.33868808567604 1982 1.42488846349785 1983 1.49729018034845 1984 1.54473028036246 1985 1.60721048246611 1986 1.70269492372715 1987 1.76273040861914 1988 1.74911553007198 1989 1.68125988082208 1990 1.58751493428913 1991 1.53360071558415 1992 1.53726297630806 1993 1.53889651829712 1994 1.52587350729766 1995 1.48900552555728 1996 1.39098844297069 1997 1.27787226001512 1998 1.20170298480132 1999 1.15315035349219 2000 1.13035866734387 2001 1.13506295307135 2002 1.15300586433626 2003 1.22379790796709 2004 1.35032837530945 2005 1.48642085239001 2006 1.60650198438484 2007 1.72306537774135 2008 1.83921048525511 2009 1.94435616675815 2010 2.05872265833397 2011 2.19514727116581 2012 2.32705990145757 2013 2.4196986265824 2014 2.49067147032333 2015 2.55072728101774 2016 2.58943041584804 2017 2.61643071720242 2018 2.65752518525802 2019 2.71980659153127 2020 2.81515250960114 2021 2.94250792213671 2022 3.09834375888541 2023 3.28768341485104