Annual % of total population
1960 43.12032860869613
1961 43.41979172373349
1962 43.65263714194344
1963 43.851593600799795
1964 43.9825750212395
1965 44.071659155774434
1966 44.167272258613245
1967 44.24831110387322
1968 44.289622583984276
1969 44.30411774451186
1970 44.30880500095189
1971 44.306278085124504
1972 44.30027779357781
1973 44.28131253000522
1974 44.23912924142188
1975 44.219546456734996
1976 44.23962512097548
1977 44.22224082075219
1978 44.173413876392075
1979 44.13784966077976
1980 44.10393806082609
1981 43.951091239441
1982 43.8180151143559
1983 43.80967603764298
1984 43.78424916978038
1985 43.73903539963738
1986 43.673298918867886
1987 43.58147025374263
1988 43.453486587677
1989 43.26769713957181
1990 42.96843315590248
1991 42.55507271290539
1992 42.20265613482012
1993 41.89442031281522
1994 41.48364864228345
1995 40.88415728059588
1996 40.18333213407394
1997 39.384489364355474
1998 38.544364980569384
1999 37.70265581691798
2000 36.860388722353555
2001 36.03371263525651
2002 35.278362562785304
2003 34.56603834657182
2004 33.872954684703984
2005 33.246539911598774
2006 32.64794638743188
2007 32.08538250357537
2008 31.67484411948766
2009 31.408327789413317
2010 31.228847487705437
2011 31.17654084367707
2012 31.232640121553615
2013 31.360542132456764
2014 31.535238879653107
2015 31.687546249760494
2016 31.737236498261193
2017 31.70939517396364
2018 31.63201003248942
2019 31.478746113038266
2020 31.280865787919783
2021 31.05050111630334
2022 30.761483035083696
2023 30.40780911493235