Annual % of total population
1960 37.8233511438256
1961 37.32541730910473
1962 36.82747808444008
1963 36.313579928596496
1964 35.799437728804754
1965 35.29945375630049
1966 34.802582237096125
1967 34.29633393160556
1968 33.79809434193144
1969 33.32015564687584
1970 32.856875055502215
1971 32.45234467207591
1972 32.0823798384688
1973 31.72205605852278
1974 31.36555094681561
1975 31.02685985123206
1976 30.75721654254389
1977 30.499504557991347
1978 30.239700447279862
1979 29.98371381232199
1980 29.726677796663694
1981 29.421477523811046
1982 29.135761414288556
1983 28.866150234746087
1984 28.60571374677047
1985 28.344144786142962
1986 28.076222186128927
1987 27.789189283325385
1988 27.504959055527582
1989 27.24211325358845
1990 26.961724301479382
1991 26.67879522986255
1992 26.4150747019872
1993 26.147538210590053
1994 25.875147621893163
1995 25.60453751942723
1996 25.35539784547979
1997 25.115558541783063
1998 24.876308386281746
1999 24.636320215674488
2000 24.397678898760088
2001 24.048528137755252
2002 23.645485961109074
2003 23.261641371122103
2004 22.89330082021477
2005 22.539216073286266
2006 22.211343193133292
2007 21.89745540211697
2008 21.595793944291
2009 21.303225125387748
2010 21.017450311961507
2011 20.792088470468318
2012 20.594669615555972
2013 20.400054781662313
2014 20.20641466812386
2015 20.008750792894315
2016 19.808446084755648
2017 19.604749646772518
2018 19.398927309488514
2019 19.186404654437943
2020 18.972253719192466
2021 18.759469149096827
2022 18.53264498131537
2023 18.315107881557505