Annual % of total population
1960 31.4634568296669
1961 31.4791818645153
1962 31.3209824060024
1963 31.040019150693
1964 30.7630229765038
1965 30.3941103398032
1966 29.8761178791926
1967 29.2734678173159
1968 28.6483609980071
1969 28.0645378152757
1970 27.5475268231412
1971 27.0449988782233
1972 26.5787095502021
1973 26.2543846920129
1974 26.1112547850073
1975 26.0551219649154
1976 26.0176846934794
1977 26.044527589616
1978 26.0843055534936
1979 26.0974950656235
1980 26.1037000669296
1981 26.1299444751225
1982 26.2139459147865
1983 26.3415686551126
1984 26.4379796760182
1985 26.4772602962244
1986 26.4583720983705
1987 26.3280367086354
1988 26.0776744777133
1989 25.7128032474385
1990 25.268597809859
1991 24.826008884278
1992 24.3715050804972
1993 23.8779791161341
1994 23.3195649742986
1995 22.7169774783965
1996 22.1261021941892
1997 21.5337648665285
1998 20.9360016108491
1999 20.3285422663796
2000 19.7003937088054
2001 19.054040343122
2002 18.433619102226
2003 17.8577306330754
2004 17.3390055927235
2005 16.8750975937372
2006 16.4324493506003
2007 16.0387175920193
2008 15.7185859205812
2009 15.5220339338456
2010 15.4469515367955
2011 15.4128243217093
2012 15.3723871192922
2013 15.3326503825946
2014 15.3154153033202
2015 15.3216241773697
2016 15.3959154725099
2017 15.535811607734
2018 15.6791427100826
2019 15.787532059486
2020 15.8419573951599
2021 15.8810670050161
2022 15.7396012689394
2023 15.6286263853925