Year % of total population 1960 50.1441899283149 1961 50.1487575952714 1962 50.1992778130431 1963 50.2896449427392 1964 50.3528979528696 1965 50.3910374405502 1966 50.4290333652474 1967 50.4734881555206 1968 50.5255044054598 1969 50.5813099467382 1970 50.637769202828 1971 50.6894950845097 1972 50.6667438098856 1973 50.5751505685904 1974 50.488062678857 1975 50.4045779918753 1976 50.3215314299221 1977 50.237163370571 1978 50.1525328305642 1979 50.0635994085255 1980 50.001866109322 1981 49.9756557645287 1982 49.9533512860202 1983 49.9339762630829 1984 49.9170188465228 1985 49.9022395788941 1986 49.8850580571498 1987 49.8650681462555 1988 49.8471921400312 1989 49.8337251444804 1990 49.8236246111504 1991 49.8142944028694 1992 49.8046581696745 1993 49.7960343296833 1994 49.7887693764828 1995 49.8395820387121 1996 49.9416448492004 1997 50.0341144700554 1998 50.1211697264098 1999 50.2029936785005 2000 50.281003260974 2001 50.356795528874 2002 50.4289178600106 2003 50.4934693715511 2004 50.4966978212671 2005 50.4455464724342 2006 50.3973962833055 2007 50.3523087588503 2008 50.3097737939611 2009 50.2697287156913 2010 50.229453559918 2011 50.1879937552749 2012 50.148447172695 2013 50.1114466430356 2014 50.0763583894173 2015 50.0443981059125 2016 50.0052454798582 2017 49.9585573533892 2018 49.9130053982129 2019 49.8811429599484 2020 49.8556167790928 2021 49.8196530094537 2022 49.7742864539512 2023 49.7254651528474