Annual % of total population
1960 30.40056223538
1961 29.7760285516499
1962 29.0620216679148
1963 28.3659428194038
1964 27.7216355101259
1965 27.1443057181449
1966 26.6385393557731
1967 26.1505402250761
1968 25.6649239322916
1969 25.1732604272514
1970 24.6152874308522
1971 24.0048074504859
1972 23.4021454660741
1973 22.8655305946606
1974 22.4039115878306
1975 22.0112502356004
1976 21.6645667205161
1977 21.3373559228896
1978 20.9893527480852
1979 20.6292386454804
1980 20.308194428694
1981 20.0217068582443
1982 19.7734511103593
1983 19.5896273538928
1984 19.4797969374696
1985 19.410679953286
1986 19.3485690060688
1987 19.307865401816
1988 19.3362500395477
1989 19.3602666304359
1990 19.3167212970103
1991 19.2445372362259
1992 19.1769396252093
1993 19.1347756535195
1994 19.0913610914043
1995 19.0287949571873
1996 18.9306007734864
1997 18.773118570879
1998 18.5544143453113
1999 18.3338428041013
2000 18.1527929030686
2001 18.0015526206859
2002 17.8684152612907
2003 17.715815245342
2004 17.5455099623365
2005 17.3598775159543
2006 17.1663406440692
2007 16.9771468883877
2008 16.8042085685859
2009 16.6655053602719
2010 16.5571237629868
2011 16.4867971773698
2012 16.4429029683727
2013 16.4228645593116
2014 16.4027634106356
2015 16.3579045457208
2016 16.2889413506541
2017 16.2000526675114
2018 16.070388313869
2019 15.8772381564443
2020 15.6613258273671
2021 15.4286440442833
2022 15.1728770072547
2023 14.91327748419