Annual % of total population
1960 36.2642995984539
1961 36.428063279863
1962 36.4060163693357
1963 36.2121910260362
1964 35.8867915804329
1965 35.4651740502556
1966 34.9722437830987
1967 34.4268157814435
1968 33.8407378167632
1969 33.2284331027813
1970 32.5982640836936
1971 31.972327967185
1972 31.3814569744423
1973 30.8267598903172
1974 30.2940198254608
1975 29.7739589721767
1976 29.2641121453999
1977 28.7704364322391
1978 28.3100886893
1979 27.9032292626481
1980 27.5624889173961
1981 27.2540805960326
1982 26.9653482263706
1983 26.7264501413663
1984 26.5246863475073
1985 26.3405896576704
1986 26.1706567658884
1987 26.0084543336646
1988 25.8482874710834
1989 25.695950538957
1990 25.5536522745906
1991 25.3949090653072
1992 25.124927210433
1993 24.7631656696646
1994 24.4108065616588
1995 24.0619049766203
1996 23.7032467409369
1997 23.322403854121
1998 22.912496075898
1999 22.4932659852964
2000 22.0792026836164
2001 21.6866356535269
2002 21.3213388817155
2003 20.9946524994406
2004 20.7263351015856
2005 20.4845976815345
2006 20.233026899272
2007 19.9717528652643
2008 19.7346177509021
2009 19.5381046988032
2010 19.3354187663618
2011 19.0984950648002
2012 18.8872767654397
2013 18.7281872022122
2014 18.6171407760906
2015 18.5247170000308
2016 18.4250316021688
2017 18.3323108352123
2018 18.2554720886461
2019 18.2183103953705
2020 18.2062562843029
2021 18.1815647952524
2022 18.095146970295
2023 17.9283765200895