Annual % of total population
1960 37.6980223503223
1961 38.0019979163362
1962 38.6296058855063
1963 39.2864905509637
1964 40.4197937103765
1965 41.8071525765272
1966 42.6810934200364
1967 42.8120094875999
1968 42.4818051174473
1969 42.4606573285852
1970 42.4153127838928
1971 42.3670083254626
1972 42.3402970047823
1973 41.9580970253795
1974 41.7766573574491
1975 42.0584550103807
1976 42.7757711664213
1977 43.7617241626411
1978 44.7892779876336
1979 45.1519811684174
1980 45.2253108227972
1981 45.6061077664307
1982 45.980949874189
1983 46.3211310937884
1984 46.6041607543137
1985 46.81997760219
1986 46.9690331438073
1987 47.0593209020172
1988 47.0984153509858
1989 47.0912267190127
1990 47.0237548026528
1991 46.8689864874723
1992 46.6628605114163
1993 46.4744156909651
1994 46.2771781277275
1995 46.0211130822701
1996 45.7251834443929
1997 45.4199239962407
1998 45.1396917921307
1999 44.8828155434763
2000 44.6252952230534
2001 44.3829232213014
2002 44.1839030394481
2003 44.0342384982064
2004 43.9180064869648
2005 43.850693532167
2006 43.8276801748685
2007 43.8076001027181
2008 43.7606634903924
2009 43.6718154290004
2010 43.5529333619615
2011 43.4267630484948
2012 43.2935453276195
2013 43.1456587459008
2014 42.9733053635357
2015 42.7595659725231
2016 42.5011235716195
2017 42.1793447427196
2018 41.800754251594
2019 41.3967778532538
2020 40.9832336885885
2021 40.5620896763803
2022 40.113736665993
2023 39.6386624401049