Year % of female population 1960 40.3386851455811 1961 40.15419587780004 1962 40.261795330941275 1963 40.81434507781409 1964 41.298735515129295 1965 41.499083526423014 1966 41.56739773450491 1967 41.43502431831861 1968 41.275987347797496 1969 41.18813905951021 1970 41.03723782951464 1971 40.90051072445643 1972 40.663199235882196 1973 40.415435004554986 1974 40.340430200794955 1975 40.29125164600301 1976 40.200424138074915 1977 39.74516389394585 1978 38.71733107426975 1979 37.63464516499508 1980 36.721977532882796 1981 35.894558495198446 1982 35.222508147721285 1983 34.468338097491454 1984 33.5905331556846 1985 32.77422746919604 1986 32.059169252891046 1987 31.50156157909445 1988 31.01016994074471 1989 30.59799212028989 1990 30.351948786335196 1991 30.120745702449994 1992 29.82552536978039 1993 29.518440900984334 1994 29.146905722278877 1995 28.702127571167317 1996 28.19094235512331 1997 27.584579089970866 1998 26.978333687093805 1999 26.405396913144585 2000 25.804210189303507 2001 25.14321200802388 2002 24.3971167688678 2003 23.6601445344802 2004 22.95642601194649 2005 22.23689386436239 2006 21.64755060471029 2007 21.25140868735832 2008 20.942891117277004 2009 20.69653095076095 2010 20.493176376082964 2011 20.326113096378815 2012 20.22429041776595 2013 20.16346692077686 2014 20.116746387075725 2015 20.050512179404375 2016 19.98314560895969 2017 19.95734503633347 2018 19.888490612638922 2019 19.749137184685445 2020 19.541930704959256 2021 19.261235157318634 2022 18.939394121505387 2023 18.589336618599415