Annual % of total population
1960 38.1695645506547
1961 39.403635754972
1962 40.2092386480764
1963 40.6370369702131
1964 40.8189849145267
1965 40.7928243357023
1966 40.5722336261967
1967 40.2200639474498
1968 39.7628598185528
1969 39.1996677379976
1970 38.5318166949905
1971 37.7535727615217
1972 36.857104392159
1973 35.8671135080739
1974 34.8118699407601
1975 33.7389609327545
1976 32.7809927870315
1977 32.0334841386352
1978 31.457593557551
1979 30.9375865740971
1980 30.5295358427724
1981 30.3288338418496
1982 30.2799709307682
1983 30.3490328694981
1984 30.4476403168911
1985 30.5078029559545
1986 30.538000244952
1987 30.5406395724248
1988 30.5281291419619
1989 30.3096802651713
1990 30.1691152312522
1991 30.2554489388221
1992 30.3883797579867
1993 30.4792298262007
1994 30.3754453364223
1995 30.0917980638215
1996 29.6710340348556
1997 29.1940222863602
1998 28.5910416441653
1999 27.8157608967728
2000 26.9054182492255
2001 25.9528041176669
2002 25.0474752720378
2003 24.1850950454946
2004 23.3283100844982
2005 22.4304174982919
2006 21.4802048514011
2007 20.5782332737428
2008 19.8898881334361
2009 19.4809797198087
2010 19.2508857740897
2011 19.1147520498632
2012 19.0968978057734
2013 19.1928887743076
2014 19.3860957507787
2015 19.6248898551012
2016 19.8596918524618
2017 20.0694583970184
2018 20.2182434550055
2019 20.3044279739623
2020 20.3433230260031
2021 20.4225514860675
2022 20.4777683189419
2023 20.3910552685855