Annual % of total population
1960 25.3196571497663
1961 25.1396153791487
1962 24.8127658102077
1963 24.3411574374212
1964 23.8434114265491
1965 23.3310933838064
1966 22.8378928415
1967 22.4290233600032
1968 22.0039401277076
1969 21.4305278578085
1970 20.83196563263
1971 20.3691131424127
1972 20.1062831942241
1973 20.0131002246432
1974 20.1156928793003
1975 20.4144697697623
1976 20.7634658515423
1977 21.1288694792093
1978 21.4676805006947
1979 21.7419860971692
1980 21.9434894719245
1981 22.0629888527071
1982 22.0708978624388
1983 21.9565058967507
1984 21.7938226748341
1985 21.6511159393876
1986 21.5347525150936
1987 21.3876905979138
1988 21.1807194286939
1989 20.7978563402694
1990 20.2339641920416
1991 19.7009237912018
1992 19.2515897086618
1993 18.8475064809814
1994 18.488989148976
1995 18.1777252711888
1996 17.8885297650648
1997 17.6107889973187
1998 17.3575559378349
1999 17.1059746696466
2000 16.8202827763622
2001 16.4978819419029
2002 16.2284474062245
2003 16.0102547305996
2004 15.7801642826521
2005 15.5515663309732
2006 15.3282730419543
2007 15.1302614440954
2008 14.9721804038705
2009 14.8349373654873
2010 14.6900241067607
2011 14.5559219408304
2012 14.468838183587
2013 14.4358670166811
2014 14.4563367630056
2015 14.4841463734246
2016 14.5051486716214
2017 14.5309947214923
2018 14.5441489839135
2019 14.5483703583441
2020 14.5570170366919
2021 14.553461837367
2022 14.4414928505015
2023 14.3803084980572