Annual % of total population
1960 5.17299909590011
1961 5.4207065079556465
1962 5.673829817619396
1963 5.935349202793824
1964 6.399709536424576
1965 6.8981212538032315
1966 7.436575129795453
1967 8.01686086961714
1968 8.642828487164428
1969 9.307804593171383
1970 10.00981178677859
1971 10.74508289841327
1972 11.519445536978026
1973 12.337158101331022
1974 13.212386219841033
1975 14.09436355309418
1976 14.814250653465292
1977 15.625075850537359
1978 16.479643196253488
1979 16.570235386865637
1980 16.66121936797687
1981 16.753520016711473
1982 16.85388850997623
1983 16.96387112760651
1984 17.088065620353785
1985 17.226837413407665
1986 17.3837861222336
1987 17.54755334506557
1988 17.662536550796496
1989 17.663954186983222
1990 17.648645653345692
1991 17.642400694818747
1992 17.647161457493564
1993 17.661631690372687
1994 17.689962205533362
1995 17.72592581662573
1996 17.767858987535302
1997 17.813846125054148
1998 17.88288535398534
1999 17.901939165884716
2000 17.902125458416744
2001 17.922320229291543
2002 17.962697927951062
2003 18.020080202242703
2004 18.092637098182717
2005 18.176826145618275
2006 18.272664662169447
2007 18.377970198358035
2008 18.49019452196501
2009 18.60406363125758
2010 18.7196123947102
2011 18.843626608166225
2012 18.972930089676336
2013 19.100444215628208
2014 19.18088952408411
2015 19.210597768564735
2016 19.240368087021427
2017 19.26911186792539
2018 19.30171144663597
2019 19.346171272407116
2020 19.4047544009557
2021 19.487508101407773
2022 19.586945450126635
2023 19.694327932423036