Year % of total population 1960 49.9113857881807 1961 49.9889221587119 1962 50.064327546164 1963 50.1360994299178 1964 50.2052748472616 1965 50.2790069357926 1966 50.3560283709867 1967 50.433343363677 1968 50.5092092375789 1969 50.5804602322312 1970 50.6433527239692 1971 50.6956361689906 1972 50.7389091329747 1973 50.7718817888957 1974 50.7843453045463 1975 50.764334314199 1976 50.7101161025594 1977 50.616026194465 1978 50.4986265063567 1979 50.3854991505037 1980 50.2817298223364 1981 50.188062977815 1982 50.1047534847926 1983 50.0291807642217 1984 49.9582216471315 1985 49.8977487863659 1986 49.8525604298092 1987 49.8165296808014 1988 49.7814900846768 1989 49.7458422973922 1990 49.7114716412591 1991 49.6802737169069 1992 49.6528440479257 1993 49.6270443507275 1994 49.5988414870529 1995 49.5622622914017 1996 49.5155778480799 1997 49.4613126010947 1998 49.4065772746306 1999 49.3608631012039 2000 49.3253033427391 2001 49.2966360425465 2002 49.2750578285916 2003 49.2563709784385 2004 49.2390985027981 2005 49.2249493510012 2006 49.2116625309953 2007 49.1979803645302 2008 49.1838618760375 2009 49.1696329709425 2010 49.1552715253109 2011 49.1406800933218 2012 49.1259676569376 2013 49.1092610634967 2014 49.0980871717359 2015 49.0958633079368 2016 49.0979812296578 2017 49.1049653468681 2018 49.115882474819 2019 49.1264645144509 2020 49.1413180239619 2021 49.162734227978 2022 49.1789223067616 2023 49.1888128257338