Annual % of total population
1960 23.3591554135538
1961 23.3502646390264
1962 23.25186246219
1963 23.2003648989393
1964 23.2723559499828
1965 23.4187742109053
1966 23.597107849191
1967 23.7685470217328
1968 23.9069163246101
1969 24.016749103342
1970 24.1060352282331
1971 24.1543425257933
1972 24.1085403028263
1973 23.9455894358055
1974 23.6924717628779
1975 23.3498956334719
1976 22.9230905444882
1977 22.4351344941154
1978 21.9293955943134
1979 21.4546788715328
1980 21.0244754460117
1981 20.6259267692701
1982 20.2428159026658
1983 19.8859352897754
1984 19.5691479067698
1985 19.3097062429263
1986 19.0892693685609
1987 18.9366874738083
1988 18.8961986455836
1989 18.9326560317306
1990 19.0289089268974
1991 19.1720733531745
1992 19.3282175177415
1993 19.4505074702985
1994 19.4867735900972
1995 19.4496732318133
1996 19.4020708475748
1997 19.3599274920913
1998 19.3000274597212
1999 19.2058942748599
2000 19.0578244857202
2001 18.8694806080063
2002 18.6609902100371
2003 18.4502256243982
2004 18.261942132148
2005 18.0757571969932
2006 17.8972710542286
2007 17.7664640853784
2008 17.6908633916145
2009 17.6464813465497
2010 17.6278811556178
2011 17.6294357068589
2012 17.6421204892553
2013 17.6566554068823
2014 17.6723749575135
2015 17.7212237746005
2016 17.8003904732425
2017 17.8760575913004
2018 17.9083522707734
2019 17.8740875883716
2020 17.7883500845831
2021 17.6612097379976
2022 17.4667211276054
2023 17.2166712269646