Annual % of total population
1960 27.2575584328548
1961 27.2873358353619
1962 27.1193439534419
1963 26.8713956548457
1964 26.5669913084143
1965 26.1711770262475
1966 25.7568026680843
1967 25.3784224211975
1968 24.9936714693507
1969 24.6259186756835
1970 24.2920966767962
1971 24.0223411160073
1972 23.8398166478736
1973 23.7148723561754
1974 23.6084262205968
1975 23.5025064053192
1976 23.3956125914725
1977 23.2859499915963
1978 23.1888446825322
1979 23.1123336546224
1980 23.0167501108952
1981 22.8862671386478
1982 22.7496633740604
1983 22.6226988125076
1984 22.4952586984697
1985 22.3385648685441
1986 22.1259217677528
1987 21.8637220028528
1988 21.5724298053173
1989 21.2353422416144
1990 20.8366062041546
1991 20.3992868621053
1992 19.9451374451374
1993 19.4664114722989
1994 18.9570759783454
1995 18.4204909231352
1996 17.8820761790084
1997 17.3748183260061
1998 16.9001181423734
1999 16.444414908212
2000 16.0219347601393
2001 15.6266094052571
2002 15.2286785696102
2003 14.8538902082349
2004 14.5503015818681
2005 14.3187638933678
2006 14.1487294081481
2007 14.0624219996847
2008 14.0657501623622
2009 14.116596873842
2010 14.1970920447434
2011 14.3140512032954
2012 14.4591258914618
2013 14.608990797754
2014 14.7542769180647
2015 14.8706641766729
2016 14.9596176113147
2017 15.0486181800159
2018 15.1325024074943
2019 15.1861788161919
2020 15.2025532184162
2021 15.1884286637386
2022 15.1165840505245
2023 14.9618255066993