Annual % of total population
1960 25.185372240642
1961 24.6757729708499
1962 24.2282249796034
1963 23.9420211706858
1964 23.8146687278436
1965 23.7656915641499
1966 23.7908282519213
1967 23.80754211636
1968 23.6991996686754
1969 23.5207224768323
1970 23.3346946407382
1971 23.1751616408527
1972 23.0620182079078
1973 22.9481264254287
1974 22.8187832796687
1975 22.6745963610591
1976 22.4673262616778
1977 22.1708344632065
1978 21.7905412679367
1979 21.3485965251718
1980 20.8460717886484
1981 20.2520157574214
1982 19.6609588252804
1983 19.1810482986903
1984 18.7914468825774
1985 18.452707438218
1986 18.107133906542
1987 17.7437823750986
1988 17.4386917791611
1989 17.2175409481625
1990 17.0420342713126
1991 16.9470516107457
1992 16.9764324740425
1993 17.0694998272451
1994 17.2020519776413
1995 17.3907703368918
1996 17.6128839237767
1997 17.8457062465543
1998 18.0749093412483
1999 18.2900508171841
2000 18.4743350768773
2001 18.6105354504133
2002 18.698720154714
2003 18.7422436070273
2004 18.7353593867773
2005 18.6826640300755
2006 18.6085052129821
2007 18.5012852841805
2008 18.3634331264489
2009 18.1974890942688
2010 18.0032566192358
2011 17.7981734629169
2012 17.5762206457661
2013 17.3486007934213
2014 17.1284909132175
2015 16.9219182936477
2016 16.7541082595902
2017 16.6289295920396
2018 16.5122307682437
2019 16.3894926704806
2020 16.2688363392114
2021 16.1651541305828
2022 16.0597246484197
2023 15.9469611547319