Year % of total population 1960 49.3688356146292 1961 49.3727444466791 1962 49.3801620078761 1963 49.388343006377 1964 49.3947459827172 1965 49.4005403529259 1966 49.396233343455 1967 49.3828979357904 1968 49.3732225237257 1969 49.3662298562064 1970 49.3590271457062 1971 49.3531655290239 1972 49.3482505355743 1973 49.3513387112644 1974 49.3640513738205 1975 49.378371297541 1976 49.3844298328317 1977 49.3822535106927 1978 49.381531705614 1979 49.3835939696685 1980 49.3727868101256 1981 49.3591957770356 1982 49.3752741828162 1983 49.3876632916754 1984 49.3724286442426 1985 49.3646013459243 1986 49.3752051518514 1987 49.3519343682865 1988 49.339380832305 1989 49.3675205475804 1990 49.3710302726808 1991 49.3873985755395 1992 49.4320256972714 1993 49.4704014093681 1994 49.5129681519697 1995 49.5665608339033 1996 49.6173418546556 1997 49.6612343733098 1998 49.7033835920206 1999 49.744490307996 2000 49.7823440875239 2001 49.8189441987426 2002 49.8576264466894 2003 49.8966765785529 2004 49.9324647841687 2005 49.9653373729087 2006 49.9950412971195 2007 50.0206057579921 2008 50.0445278819144 2009 50.0680750945014 2010 50.0907166679824 2011 50.1102800597188 2012 50.1273705976351 2013 50.1417669042487 2014 50.1534044441148 2015 50.1625498911832 2016 50.1734065623054 2017 50.1842318289071 2018 50.1909356513403 2019 50.1946379414326 2020 50.1963657983403 2021 50.1959284599185 2022 50.1937814680832 2023 50.1926463823643