Annual % of total population
1960 28.092478334493567
1961 28.14541674102817
1962 28.017264703700288
1963 27.82743650179019
1964 27.671192359663877
1965 27.564053282583664
1966 27.38402954568754
1967 27.159367970972035
1968 26.97241136515476
1969 26.75962997323602
1970 26.523618811979365
1971 26.267715395462755
1972 25.987950920855248
1973 25.667764532771514
1974 25.31781333154745
1975 24.93539340029409
1976 24.51867616536183
1977 24.091369278301865
1978 23.655554430201143
1979 23.227278972224052
1980 22.834299607687704
1981 22.497554072631253
1982 22.184800755588213
1983 21.86416682035142
1984 21.54512678026216
1985 21.221608557995307
1986 20.898392222312843
1987 20.604037894025964
1988 20.356744147540436
1989 20.139229858607024
1990 19.952808461132808
1991 19.786804652240917
1992 19.64117527871743
1993 19.506674095550963
1994 19.34330073761374
1995 19.150405995098133
1996 18.953569319668002
1997 18.770902706502994
1998 18.594728080342975
1999 18.422507957190696
2000 18.248746856210687
2001 18.06166736483654
2002 17.870793832795574
2003 17.682675905969447
2004 17.490293094099894
2005 17.29580936641926
2006 17.117767800610437
2007 16.969585457074515
2008 16.855355850041374
2009 16.761199382784845
2010 16.672216075789912
2011 16.59366276367085
2012 16.52011460894894
2013 16.450814888730683
2014 16.37955648760268
2015 16.302924403264306
2016 16.231656647858966
2017 16.165153613584135
2018 16.076146475422224
2019 15.96147214708977
2020 15.829265753978989
2021 15.6709878981251
2022 15.503794488773668
2023 15.309008032057468