Year % of total population 1960 50.51826588066952 1961 50.53052899818546 1962 50.55257053454996 1963 50.57579046251687 1964 50.60331884204546 1965 50.63440460796276 1966 50.65063675263159 1967 50.65173084417109 1968 50.65226030352029 1969 50.650877630019124 1970 50.64757907010134 1971 50.64287596206347 1972 50.63469558984614 1973 50.62058050900437 1974 50.607154589023025 1975 50.60051161966335 1976 50.59124961984402 1977 50.58683278135349 1978 50.59235105218863 1979 50.59632766831999 1980 50.59550902485734 1981 50.63397381397564 1982 50.65734281218928 1983 50.63258412993696 1984 50.614804799013584 1985 50.59919816026601 1986 50.57829955368605 1987 50.55572417281639 1988 50.53796019617445 1989 50.52757729838978 1990 50.52321820897186 1991 50.52385581775539 1992 50.526699868995905 1993 50.532144335995575 1994 50.53604472044509 1995 50.53718108300606 1996 50.54451492347248 1997 50.558466160921 1998 50.56336355727541 1999 50.55942810775199 2000 50.55179122469771 2001 50.54101169623511 2002 50.53273792256474 2003 50.53365728260028 2004 50.539281324637244 2005 50.54197482893724 2006 50.54485949032064 2007 50.545322711775356 2008 50.542894093451224 2009 50.541891403120275 2010 50.542484438916524 2011 50.545270006663294 2012 50.542983459204876 2013 50.54001066133759 2014 50.5419869361715 2015 50.53808070472132 2016 50.52714216911853 2017 50.51423790967587 2018 50.50082593075695 2019 50.48778612952149 2020 50.475820462943425 2021 50.463537925582735 2022 50.44993738307754 2023 50.436279740992205