Annual % of total population
1960 37.2856604947367
1961 37.8267070752863
1962 38.4129162419469
1963 39.0135174342559
1964 39.5760578425005
1965 40.1152109606103
1966 40.9549864845388
1967 42.0377710797313
1968 43.0283637025651
1969 43.9085411439019
1970 44.6599716487333
1971 45.0447985057072
1972 45.0787411268837
1973 45.019584730556
1974 44.8828445710803
1975 44.640389562577
1976 44.099134960457
1977 43.3664735713284
1978 42.7099243533468
1979 42.1514431417311
1980 41.7231419065916
1981 41.1953962631907
1982 40.5445874303733
1983 39.9517749713714
1984 39.598541554345
1985 39.3249513625114
1986 39.3166788061644
1987 39.5931709264981
1988 39.6687321202375
1989 39.5054463480532
1990 38.8414194559498
1991 37.2523329600597
1992 36.222420498657
1993 34.4661140892132
1994 32.9104884145205
1995 32.3593247187763
1996 31.9563733713767
1997 31.3003894193964
1998 30.4926315349803
1999 29.6013107300577
2000 28.6814858534142
2001 27.7822073291111
2002 26.9425221895081
2003 26.1781788869506
2004 25.4761768216615
2005 24.8888734802793
2006 24.4529829580915
2007 24.0884181988847
2008 23.7330062029163
2009 23.3561195471374
2010 23.0246319125801
2011 22.6986271021172
2012 22.3287554611459
2013 21.9584134782826
2014 21.8591585166194
2015 21.7090251264921
2016 21.5923208134217
2017 21.5064009360702
2018 21.1430572070623
2019 20.8345590996104
2020 20.9743066331884
2021 21.1201276012832
2022 20.7151278569309
2023 20.1268065819704