Annual % of total population
1960 24.0321301104504
1961 23.9999013740744
1962 24.1007818586196
1963 24.1048393271189
1964 24.0893790736362
1965 24.1186365656075
1966 24.1489830205064
1967 24.0893094335772
1968 23.9654270027837
1969 23.8173027990651
1970 23.7666485958209
1971 23.7326488467112
1972 23.508297912541
1973 23.1854873071727
1974 22.835987161455
1975 22.4338590947763
1976 21.952882340569
1977 21.4271618119657
1978 20.8788102700832
1979 20.2984786277368
1980 19.7428104229185
1981 19.2366964275526
1982 18.765654944678
1983 18.3442450381235
1984 17.9691415680805
1985 17.6398306970947
1986 17.3677041138287
1987 17.1685713969198
1988 17.0670203321233
1989 17.0387171932264
1990 17.0977054522607
1991 17.2048989661084
1992 17.3448414481858
1993 17.508813643822
1994 17.605812741475
1995 17.6506262807608
1996 17.6657720966871
1997 17.6331161398039
1998 17.5595131327515
1999 17.4790181873296
2000 17.3796260932972
2001 17.1084794134546
2002 16.8111916750956
2003 16.6123246405644
2004 16.3877761070055
2005 16.148712087318
2006 15.8962061589215
2007 15.6442988401868
2008 15.427906395523
2009 15.2651690724755
2010 15.1643116776099
2011 15.0795817763206
2012 14.9810874243253
2013 14.9186417975347
2014 14.8864754852682
2015 14.8657853212347
2016 14.8833713249582
2017 14.9357400481111
2018 14.9947371721949
2019 15.0388162864858
2020 15.0597381778765
2021 15.0657088700201
2022 15.0464929125109
2023 15.0032699877647