Annual % of total population
1960 30.1925365083752
1961 30.197895237812
1962 30.0588814883727
1963 29.9021788662568
1964 29.7695193929287
1965 29.612003405977
1966 29.4423836844221
1967 29.2425551121126
1968 29.0384348922654
1969 28.8947897102858
1970 28.7793018748778
1971 28.6395581411752
1972 28.4501220404023
1973 28.1785595447928
1974 27.8355256861224
1975 27.4314460484914
1976 26.9690809393199
1977 26.4978002045322
1978 26.0427700596696
1979 25.6152789771335
1980 25.2510969517428
1981 24.9436262866457
1982 24.6514853697924
1983 24.3355555156849
1984 23.974728033215
1985 23.5651276759892
1986 23.1167679294522
1987 22.7082044195276
1988 22.3998924597343
1989 22.1797546025419
1990 22.0249609294414
1991 21.9133447055195
1992 21.822365795879
1993 21.7317994394184
1994 21.6348018006118
1995 21.519675694033
1996 21.3775259624292
1997 21.2208084838389
1998 21.0604270036659
1999 20.9012269444776
2000 20.7371998778208
2001 20.5556432263529
2002 20.3543168655489
2003 20.1474780520574
2004 19.9476177130945
2005 19.7550230011253
2006 19.5815294158459
2007 19.4336490128957
2008 19.2986634473954
2009 19.1716135235797
2010 19.056350833593
2011 18.9711546710534
2012 18.9357849563926
2013 18.9256202512991
2014 18.9114082764031
2015 18.9005638126221
2016 18.8892663434453
2017 18.8504743134126
2018 18.7801545524021
2019 18.6784507103908
2020 18.5417282291673
2021 18.3733291452377
2022 18.180046703239
2023 17.9796681140363