Annual % of total population
1960 35.8786734332586
1961 36.5659961741348
1962 37.2712808273667
1963 37.9264288496856
1964 38.4560867906013
1965 38.7539373231541
1966 38.9275074478649
1967 38.9949337290824
1968 38.9389840697325
1969 38.7781160986151
1970 38.3669594113458
1971 37.6630385895475
1972 36.814399728307
1973 35.9117576147231
1974 34.9100472633023
1975 33.8662896091654
1976 32.8110407803258
1977 31.7124805663061
1978 30.5845743498555
1979 29.4336742482064
1980 28.5730994152047
1981 27.9741957104558
1982 27.321995888619
1983 26.653552359298
1984 25.9940783517263
1985 25.3560117302053
1986 24.7212272757992
1987 24.067693774513
1988 23.4580785205903
1989 22.9307296689167
1990 22.4378061665546
1991 21.95278067336
1992 21.515875368333
1993 21.1545183680943
1994 20.8546192408689
1995 20.60697518444
1996 20.3883779080819
1997 20.1734169032294
1998 19.9382891478218
1999 19.7166731949341
2000 19.6590894764048
2001 19.6714123908463
2002 19.6071272949961
2003 19.5018523795953
2004 19.3523456217637
2005 19.1732742662087
2006 18.9748220105029
2007 18.7725340906802
2008 18.5767658392504
2009 18.3949126926038
2010 18.274200856242
2011 18.2035248324083
2012 18.083890256771
2013 17.895794681509
2014 17.6957496285227
2015 17.5042274794372
2016 17.3465371981142
2017 17.2402132712603
2018 17.1529190555453
2019 17.0479632261772
2020 16.8896383179444
2021 16.7848127274862
2022 16.7643056232762
2023 16.7169239647958