Annual % of total population
1960 25.9249145614153
1961 25.6006033249354
1962 25.2490462358691
1963 24.9939320388349
1964 24.8397997820376
1965 24.7507291841933
1966 24.7004024564914
1967 24.652238090532
1968 24.5886327535219
1969 24.5484332052292
1970 24.4869852548537
1971 24.385416985606
1972 24.2830939981139
1973 24.1591058369719
1974 23.991250520653
1975 23.7951583625216
1976 23.5525624122414
1977 23.2552077343576
1978 22.9286367802949
1979 22.5671598546647
1980 22.1702927424313
1981 21.7532719758713
1982 21.3300052904897
1983 20.8885446213055
1984 20.4241642776117
1985 20.0075614594339
1986 19.6368315037015
1987 19.2961321564945
1988 19.0630201586687
1989 18.9526963568653
1990 18.9404063597638
1991 19.0029931580768
1992 19.1153062936058
1993 19.2527090982288
1994 19.3733794709136
1995 19.4827075016645
1996 19.6005600808854
1997 19.7110389031841
1998 19.8057032831036
1999 19.9148391159628
2000 20.0089998188681
2001 20.0362448790069
2002 20.0155119465675
2003 19.9448651117401
2004 19.8163024573648
2005 19.6415892158837
2006 19.4477576316686
2007 19.2535889373492
2008 19.0810866127004
2009 18.9490618476209
2010 18.811487152387
2011 18.6281444803042
2012 18.4415854296107
2013 18.2894534449551
2014 18.1343202171072
2015 17.9809421568634
2016 17.8728636262208
2017 17.7818022820929
2018 17.6388658815734
2019 17.4377979755542
2020 17.2111656129486
2021 16.966313845532
2022 16.707318801123
2023 16.4339027758496