Year % of total population 1960 5.17022487285896 1961 5.3089403247794 1962 5.44734736815515 1963 5.58494453547757 1964 5.72347810328744 1965 5.86309456738271 1966 6.00795666102876 1967 6.15490253147672 1968 6.29530708103255 1969 6.42305172778424 1970 6.54915880798828 1971 6.671835502388 1972 6.78418914975683 1973 6.89336131695549 1974 7.00025416748126 1975 7.11278560422184 1976 7.23075472407896 1977 7.35330791823546 1978 7.47996555382627 1979 7.59906038739516 1980 7.70605609085024 1981 7.80373980310337 1982 7.89066756487503 1983 7.96954277743267 1984 8.04617239554968 1985 8.12726878680278 1986 8.2206636514023 1987 8.32596342182176 1988 8.44256103724765 1989 8.56852606228196 1990 8.69963810054806 1991 8.84018592170795 1992 8.9841883643417 1993 9.11834620025524 1994 9.24472615607154 1995 9.35935072601786 1996 9.4589752705912 1997 9.54159681363374 1998 9.61210569479175 1999 9.67901672306446 2000 9.74190489982627 2001 9.80315293348933 2002 9.86643193189669 2003 9.92088348230186 2004 9.97802711548057 2005 10.0527391503469 2006 10.136248077845 2007 10.2173352584793 2008 10.3039251181085 2009 10.4081131858639 2010 10.5137373919781 2011 10.6236690386539 2012 10.7483797397358 2013 10.8756021624757 2014 10.9955027961097 2015 11.1124805726824 2016 11.2200190154211 2017 11.3304460535986 2018 11.4597543508974 2019 11.6005982274874 2020 11.7274541416082 2021 11.8219073882904 2022 11.9183280591447 2023 12.0595840195689