Annual % of total population
1960 23.6733061443791
1961 23.7938689654729
1962 23.8117826671301
1963 23.8476224969441
1964 23.9040413703401
1965 23.9562211889764
1966 23.9819397926182
1967 23.9546140216586
1968 23.8687983806207
1969 23.7497993140188
1970 23.6112184216298
1971 23.4593299777218
1972 23.260914252325
1973 22.9856609491385
1974 22.6324125766118
1975 22.2415699319588
1976 21.8390895742248
1977 21.4323671582737
1978 21.0266050033339
1979 20.6093577361595
1980 20.222804276189
1981 19.8956549547998
1982 19.6112238161553
1983 19.3554584326083
1984 19.1020458141937
1985 18.8347553464845
1986 18.5797620606777
1987 18.3631144010263
1988 18.2072939137396
1989 18.1254522162749
1990 18.1089767967171
1991 18.1259017910158
1992 18.1370055573554
1993 18.1204638093674
1994 18.0586119110768
1995 17.9633128542897
1996 17.8643238306511
1997 17.7785590119423
1998 17.7086897898742
1999 17.6501670714164
2000 17.6079714799073
2001 17.5568546147683
2002 17.4749169975555
2003 17.3742679739935
2004 17.2677739084487
2005 17.1603667897755
2006 17.0512970124185
2007 16.9549601868234
2008 16.9027827342497
2009 16.9009373961502
2010 16.9283145490741
2011 16.9536067500674
2012 16.966479301617
2013 16.9806391043637
2014 16.9897607733501
2015 16.9822053610129
2016 16.964291079238
2017 16.9495347156322
2018 16.928264257393
2019 16.8743106334978
2020 16.7934968825779
2021 16.6881103554996
2022 16.5336142204011
2023 16.3401473882736