Annual % of total population
1960 22.1245574447917
1961 22.223023977287
1962 22.2802148454379
1963 22.2495824240488
1964 22.1199720707423
1965 21.9458122641982
1966 21.7882982682372
1967 21.6677365884095
1968 21.6000227554565
1969 21.5270700918339
1970 21.4325772337563
1971 21.3617342937607
1972 21.2732744456649
1973 21.1264283750534
1974 20.95190112152
1975 20.7741656715259
1976 20.588297427108
1977 20.4203681469023
1978 20.2976436950816
1979 20.2410236669585
1980 20.2694556358529
1981 20.3394175771652
1982 20.4229608642484
1983 20.5557894768945
1984 20.7070910765799
1985 20.8166798739334
1986 20.9041928474129
1987 21.0015864134843
1988 21.1047658764517
1989 21.1727757010873
1990 21.204503175626
1991 21.2037750413966
1992 21.1452735352485
1993 21.0181862553117
1994 20.8149231072325
1995 20.5142072419494
1996 20.0972857262643
1997 19.580079707741
1998 18.9577015656265
1999 18.2780888416575
2000 17.6255506985389
2001 16.9660733211981
2002 16.2933163209156
2003 15.708621469685
2004 15.2133276605596
2005 14.7738862009895
2006 14.430583239901
2007 14.2053065803085
2008 14.1192943491759
2009 14.129827215758
2010 14.1747169503369
2011 14.2653687528106
2012 14.4182318580313
2013 14.6241188410556
2014 14.8154511175566
2015 14.9839265906927
2016 15.18480589579
2017 15.3893943947464
2018 15.5239855953913
2019 15.6135838487328
2020 15.6502562923947
2021 15.626395804728
2022 15.5603352549995
2023 15.4348008413235