Year % of total population 1960 49.685892999932 1961 49.682261360841 1962 49.679392417754 1963 49.6960151028662 1964 49.7216559002294 1965 49.7445068535956 1966 49.7789755958982 1967 49.8174313260016 1968 49.8531285991154 1969 49.8901482699709 1970 49.9281393014864 1971 49.9566755143856 1972 49.9739658927484 1973 49.9770682133841 1974 49.9083465768798 1975 49.7828678893633 1976 49.6655873980441 1977 49.5461238797978 1978 49.4193053276645 1979 49.2970214675559 1980 49.1838948142289 1981 49.0836306538784 1982 49.0214787867876 1983 49.0589647322955 1984 49.09680699048 1985 49.0648144333848 1986 49.0251139261078 1987 49.0274600786573 1988 49.1291186257197 1989 49.1973172652794 1990 49.179318498047 1991 49.1545774994359 1992 49.147483943914 1993 49.2193270743538 1994 49.297581519009 1995 49.3503516997972 1996 49.4230973447693 1997 49.4943848895404 1998 49.5844923821606 1999 49.6557172417027 2000 49.6866678913119 2001 49.7157205597172 2002 49.7441850326137 2003 49.7747825329028 2004 49.8150255536036 2005 49.8599502643432 2006 49.8899613120615 2007 49.9065199973467 2008 49.9220542268808 2009 49.9350267109038 2010 49.9441211101397 2011 49.9519431124524 2012 49.9610179718924 2013 49.97294579178 2014 49.9866538731941 2015 49.9971287236668 2016 50.0045013393421 2017 50.0103515678581 2018 50.0150658137364 2019 50.0194404189499 2020 50.0243246664764 2021 50.0304026514809 2022 50.0364720860113 2023 50.0416429306396