Annual % of total population
1960 31.1162718095194
1961 30.978751758437
1962 30.8310830744831
1963 30.6841967032698
1964 30.5438191063246
1965 30.402439758188
1966 30.2487229901412
1967 30.0925866217024
1968 29.9432253862993
1969 29.8161241116447
1970 29.7172637318956
1971 29.6564488381245
1972 29.6308497117393
1973 29.6526490435127
1974 29.7392986639616
1975 29.8600839862065
1976 30.0064544823582
1977 30.1667697345714
1978 30.3256586825057
1979 30.4869114252418
1980 30.6423461860258
1981 30.77572543705
1982 30.8801489982181
1983 30.9572559776673
1984 31.0037490701741
1985 31.0110765925784
1986 30.9722416925682
1987 30.890024070159
1988 30.7641438755437
1989 30.5949084283413
1990 30.4039445969413
1991 30.1980957212797
1992 29.9729814917119
1993 29.7415810060055
1994 29.5108852477345
1995 29.2814736747524
1996 29.0505618609344
1997 28.8213354430812
1998 28.5985102887007
1999 28.3864423108692
2000 28.1802131806071
2001 27.9635039480871
2002 27.7328473929068
2003 27.4942108965076
2004 27.2480435226372
2005 26.9902147785386
2006 26.7224838516436
2007 26.4535033713104
2008 26.1772159938644
2009 25.8961479735009
2010 25.6397444358013
2011 25.4191748509299
2012 25.2279686735182
2013 25.0575117846874
2014 24.8909505962578
2015 24.7292121561043
2016 24.5763205280432
2017 24.4068430876801
2018 24.1931513494201
2019 23.9395441152544
2020 23.6563980592251
2021 23.3567371619625
2022 23.0533315543961
2023 22.7340998635816