Year % of total population 1960 49.87426781699849 1961 49.89025627213188 1962 49.90529492120266 1963 49.91902039444809 1964 49.93208021922605 1965 49.944994043589055 1966 49.957232321602824 1967 49.968639410978454 1968 49.979888877723766 1969 49.99092949507034 1970 50.00119861427712 1971 50.01876666321154 1972 50.04307665721956 1973 50.06630646591032 1974 50.089228357162966 1975 50.111204569994385 1976 50.13314795796057 1977 50.15238659251566 1978 50.16883662932054 1979 50.186126236826524 1980 50.202703641281076 1981 50.21926814591577 1982 50.23709164337659 1983 50.2538215315889 1984 50.269061044213224 1985 50.2829942741645 1986 50.295984392214976 1987 50.30904674546912 1988 50.32167726180014 1989 50.33452899600098 1990 50.348002414138904 1991 50.36231013655675 1992 50.376906287593336 1993 50.390754564118524 1994 50.402264112864486 1995 50.41265494674646 1996 50.42394782871557 1997 50.435314514808255 1998 50.44636333579746 1999 50.45738357726041 2000 50.470657663811586 2001 50.4839511223547 2002 50.49607273754818 2003 50.50788358471617 2004 50.51885409238856 2005 50.52935110975635 2006 50.53933369136872 2007 50.54919764214634 2008 50.56189632658296 2009 50.576893636296056 2010 50.590329308005664 2011 50.60149478196944 2012 50.61184135433424 2013 50.62217075606297 2014 50.63113505477538 2015 50.639814148696004 2016 50.649537894420895 2017 50.6596671998981 2018 50.669273766810214 2019 50.68143069995238 2020 50.70276543387391 2021 50.7316012752189 2022 50.75423384061196 2023 50.76743031194738