Annual % of total population
1960 21.2150769554844
1961 21.2982535722386
1962 21.3051702679265
1963 21.2512232007828
1964 21.1668647387649
1965 21.1082276717291
1966 21.1129387853526
1967 21.1747423997275
1968 21.2708601851618
1969 21.3703303623935
1970 21.4835291978645
1971 21.5873184787413
1972 21.5541458075762
1973 21.3221440651752
1974 20.9365985050125
1975 20.421306643986
1976 19.9598591133587
1977 19.6221306650971
1978 19.2351978193268
1979 18.773489348888
1980 18.293302287786
1981 17.858143335149
1982 17.481136297005
1983 17.1349655986522
1984 16.8000968566975
1985 16.465091533095
1986 16.2285760912702
1987 16.1198115423002
1988 16.0439297211566
1989 16.0183871720745
1990 16.0481929424651
1991 16.2069562330236
1992 16.4891575682251
1993 16.738174803133
1994 16.925501261709
1995 17.0255226764965
1996 17.1233427922616
1997 17.2366830722717
1998 17.2802352109062
1999 17.2482252851974
2000 17.1372237305282
2001 17.0664320341815
2002 17.0439604121862
2003 16.9655827937563
2004 16.8288328050395
2005 16.6382558170385
2006 16.4168596694389
2007 16.2049802740423
2008 16.0041559988477
2009 15.8019791807142
2010 15.6271008236025
2011 15.5260139780381
2012 15.473045813606
2013 15.4060853348686
2014 15.3297599627127
2015 15.2484740119613
2016 15.1266021872509
2017 15.074599763944
2018 15.141876621746
2019 15.2485095330854
2020 15.3054277156841
2021 15.2594196897793
2022 15.1507927389706
2023 15.0268183282814