Annual % of total population
1960 39.67669345571347
1961 39.491815399758245
1962 39.51905334124299
1963 39.91181902749822
1964 40.25979550441442
1965 40.39465227093961
1966 40.43173786692566
1967 40.295363140519484
1968 40.153532491590724
1969 40.07532373391905
1970 39.93773340849027
1971 39.7948842162059
1972 39.57837169751453
1973 39.349564387714466
1974 39.26453260579284
1975 39.198573423267774
1976 39.090152501364734
1977 38.654224539159706
1978 37.71122170128504
1979 36.71805058165544
1980 35.87196168602987
1981 35.10959639965173
1982 34.48326173955658
1983 33.77077192274055
1984 32.94672633077716
1985 32.172761315638795
1986 31.485430413503032
1987 30.93784826180763
1988 30.45181638819859
1989 30.039519176345337
1990 29.78443825462719
1991 29.54899121332331
1992 29.26153251034947
1993 28.969719794968075
1994 28.62437811497961
1995 28.214631814955283
1996 27.74704512511643
1997 27.198476929830168
1998 26.651516173356807
1999 26.136159367153308
2000 25.596283051836195
2001 25.001873488752462
2002 24.326173717278003
2003 23.653509746118097
2004 23.006542820769262
2005 22.339764053724405
2006 21.78759978220087
2007 21.410987710420915
2008 21.114707531559354
2009 20.874215063962605
2010 20.670855617456276
2011 20.500253010240222
2012 20.39041947955382
2013 20.319353418908157
2014 20.25957856979743
2015 20.17902689806039
2016 20.097692958542297
2017 20.057686776449213
2018 19.975324338811532
2019 19.823420392651293
2020 19.60892090068388
2021 19.327292671421677
2022 19.001508347290162
2023 18.64283046881551