Annual % of total population
1960 38.62996602107862
1961 38.06910305667832
1962 37.50405846029361
1963 36.92508308727256
1964 36.34743688323779
1965 35.77231087686104
1966 35.208103514647725
1967 34.63714536274445
1968 34.08063834460529
1969 33.54999042077132
1970 33.03699640219809
1971 32.57312009673722
1972 32.14076661036967
1973 31.71713410470562
1974 31.297629307246105
1975 30.892858442998588
1976 30.538469892540846
1977 30.18866420340691
1978 29.834020563275487
1979 29.49689804703931
1980 29.17834716788879
1981 28.843343946401344
1982 28.54493112031913
1983 28.26366784798359
1984 27.994553101571146
1985 27.73064077995287
1986 27.442747766169514
1987 27.132357051125837
1988 26.832009364793496
1989 26.58036721115845
1990 26.35407877372049
1991 26.10340796056046
1992 25.866572685155077
1993 25.649299034421556
1994 25.431139191670386
1995 25.213650674537536
1996 25.0039392013714
1997 24.80459484149292
1998 24.6068666666612
1999 24.409862545968245
2000 24.215495514456695
2001 23.914017030927177
2002 23.56311113628713
2003 23.22991212470462
2004 22.9059940602776
2005 22.591698633875716
2006 22.297845972858934
2007 22.01300656438032
2008 21.736106673327868
2009 21.473973261066558
2010 21.222536937066142
2011 21.031555749949657
2012 20.866768980154024
2013 20.704774387507204
2014 20.542526501581282
2015 20.372565159355503
2016 20.197678636870368
2017 20.019260291283377
2018 19.836640979747326
2019 19.644973466204846
2020 19.456378887801865
2021 19.270403877374505
2022 19.05917919665578
2023 18.852923967274428