Annual % of total population
1960 20.154663345320706
1961 21.388378608494975
1962 22.581875668953806
1963 23.766660151523613
1964 25.024372769267995
1965 26.34100005997187
1966 26.88650288997406
1967 27.101491303273704
1968 27.31501686520028
1969 27.524093999865144
1970 27.732175816429688
1971 27.95321640882141
1972 28.189846787690293
1973 28.428048979138325
1974 28.6898880437913
1975 28.980388585547022
1976 29.291606156404242
1977 29.59018369879816
1978 29.560979825825974
1979 29.44041898679369
1980 29.33994532777954
1981 29.278345605327548
1982 29.271911008273477
1983 29.219268965897616
1984 29.12350055589401
1985 29.232620889768196
1986 29.3295713503054
1987 29.347454054607358
1988 29.494030438892572
1989 29.54530835156935
1990 30.022729716840974
1991 30.563182064170107
1992 30.526763964528246
1993 29.93107625704181
1994 29.3557416550207
1995 29.205000100721477
1996 29.10601861462267
1997 29.03682228602059
1998 28.890938325688502
1999 28.692671686775057
2000 28.479286372108685
2001 28.308791790404836
2002 28.132974686333366
2003 28.00344883854019
2004 26.821637342515594
2005 25.68245638022984
2006 25.167051499731524
2007 25.068596097531803
2008 25.534405893331325
2009 25.58634740486988
2010 25.39422914692606
2011 25.121482722513868
2012 24.60805871124959
2013 24.061270848716806
2014 23.803028469006343
2015 23.73403618477585
2016 23.726961404641067
2017 23.74279431784459
2018 23.744781440083564
2019 23.764062812774277
2020 23.79492400119332
2021 23.86166296592296
2022 23.96313773141848
2023 24.066706721260463