Annual % of total population
1960 36.73801381892067
1961 36.22230442509887
1962 35.69476261619999
1963 35.1490089596671
1964 34.60513751455633
1965 34.05967811082158
1966 33.52865663742952
1967 32.992845855315466
1968 32.466112855493755
1969 31.964900923725427
1970 31.48368275405779
1971 31.069021634413513
1972 30.688394120472903
1973 30.316866931300908
1974 29.9481555272573
1975 29.603549955502913
1976 29.328966652420867
1977 29.063855829076594
1978 28.797498076720096
1979 28.530234807784392
1980 28.262929728769418
1981 27.9811444285596
1982 27.743945173506674
1983 27.524575860856828
1984 27.318362084307537
1985 27.11883581666548
1986 26.89030925125916
1987 26.626520708238065
1988 26.375062057819143
1989 26.16108623030444
1990 25.940767359006138
1991 25.687029789079876
1992 25.434230014530186
1993 25.17849763563961
1994 24.920345027082526
1995 24.667155818334525
1996 24.432115404284932
1997 24.209995847426782
1998 23.98591748825251
1999 23.76175726681831
2000 23.545522300862793
2001 23.19975899392676
2002 22.793136192908186
2003 22.403702618917066
2004 22.0269085580766
2005 21.66433055771844
2006 21.332943931164596
2007 21.019080599140697
2008 20.716037969537247
2009 20.426027221620657
2010 20.147624244544964
2011 19.937926934253294
2012 19.764122383520153
2013 19.596651888515556
2014 19.428920769991176
2015 19.256215037336883
2016 19.080931921208155
2017 18.901761085571287
2018 18.719284273922007
2019 18.52712408750031
2020 18.33819410034984
2021 18.149420919635148
2022 17.89350678105028
2023 17.684860190139386