Annual % of total population
1960 50.863752019846196
1961 50.046162591633816
1962 49.215722083883556
1963 48.38245958589604
1964 47.54431670510411
1965 46.7635398500038
1966 45.983116741556714
1967 45.20366855400655
1968 44.42345241177086
1969 43.64780141886121
1970 42.877266626021026
1971 42.115013362680266
1972 41.363161138946275
1973 40.63422325371932
1974 39.91057153920909
1975 39.18684670224152
1976 38.46676005882261
1977 37.74590452276824
1978 37.026965044853355
1979 36.31468479736095
1980 35.61208462665195
1981 34.94818023279889
1982 34.311392819230534
1983 33.69176675129248
1984 33.07691390400919
1985 32.46648667842196
1986 31.869283165177606
1987 31.282242451436105
1988 30.70193270512497
1989 30.131318145381854
1990 29.572365180727232
1991 29.038652103633645
1992 28.52473555325256
1993 28.02363004387338
1994 27.51638913472798
1995 27.01446435873409
1996 26.535738679930265
1997 26.048844466698235
1998 25.56805070881827
1999 25.10415644131591
2000 24.6452423663369
2001 24.278691440674184
2002 23.942331841351862
2003 23.613111414577812
2004 23.29598439115173
2005 22.98378082699652
2006 22.674383161671688
2007 22.36889190962362
2008 22.070200972410365
2009 21.77912631428333
2010 21.495728058768794
2011 21.207829918165405
2012 20.92876290127201
2013 20.65508802965565
2014 20.383643396012687
2015 20.115278098017594
2016 19.85196914567087
2017 19.596060050385844
2018 19.352308828967878
2019 19.109803629400794
2020 18.861640532891062
2021 18.615200497175866
2022 18.366860903693308
2023 18.115994603719358