Annual % of total population
1960 30.4609759569657
1961 30.8294674433819
1962 30.7703194863227
1963 30.5666512849688
1964 30.1150358702095
1965 29.5127625455153
1966 28.8931712256534
1967 28.2330778673879
1968 27.5857234053591
1969 26.9022185123191
1970 26.1480470780098
1971 25.4491574773418
1972 24.8302245531
1973 24.2101376097673
1974 23.6053004787135
1975 23.0443997589498
1976 22.539033241052
1977 22.1220642584193
1978 21.8027373925944
1979 21.638268589739
1980 21.6404385384886
1981 21.7357547618285
1982 21.9148354026031
1983 22.187767268978
1984 22.4728258551331
1985 22.6907082346393
1986 22.8581417212258
1987 22.9947005381389
1988 23.1038745240289
1989 23.1050940512975
1990 22.980548178672
1991 22.7966558697428
1992 22.5290561190237
1993 22.2029987520926
1994 21.8727145138599
1995 21.5109095352245
1996 21.0832596977749
1997 20.5464818527882
1998 19.8547987145778
1999 19.0861252791338
2000 18.320430382984
2001 17.5126129829303
2002 16.6637662297954
2003 15.9992727672749
2004 15.5697736786839
2005 15.2085851681157
2006 14.9362071305406
2007 14.8202549631652
2008 14.8747283715676
2009 15.0260237510162
2010 15.1605885062166
2011 15.3603646452539
2012 15.6987743912697
2013 16.0741100045898
2014 16.4601039456127
2015 16.8510270863284
2016 17.2113708069139
2017 17.4741102485831
2018 17.6066010083569
2019 17.6608351756578
2020 17.6804678846996
2021 17.719607735911
2022 17.7042504188661
2023 17.5729822027872