Year	% of total population
1960	41.55
1961	39.017
1962	36.538
1963	34.128
1964	31.795
1965	29.555000000000007
1966	27.406999999999996
1967	25.358999999999995
1968	23.412000000000006
1969	21.575999999999993
1970	19.845
1971	18.22
1972	16.698999999999998
1973	15.284000000000006
1974	13.968000000000004
1975	12.748000000000005
1976	11.617999999999995
1977	10.579999999999998
1978	9.622
1979	8.742999999999995
1980	7.936000000000007
1981	7.200000000000003
1982	6.525999999999996
1983	5.911000000000001
1984	5.350999999999999
1985	4.840999999999994
1986	4.674999999999997
1987	4.822000000000003
1988	4.972999999999999
1989	5.128
1990	5.287999999999997
1991	5.469999999999999
1992	5.676000000000002
1993	5.888999999999996
1994	6.109999999999999
1995	6.338999999999999
1996	6.575000000000003
1997	6.819999999999993
1998	7.072999999999993
1999	7.334000000000003
2000	7.605000000000004
2001	7.944000000000003
2002	8.358999999999995
2003	8.793000000000006
2004	9.248999999999995
2005	9.715000000000003
2006	10.192999999999998
2007	10.691999999999993
2008	10.995999999999995
2009	11.087999999999994
2010	11.180999999999997
2011	11.274000000000001
2012	11.369
2013	11.462999999999994
2014	11.558999999999997
2015	11.655000000000001
2016	11.751999999999995
2017	11.849999999999994
2018	11.938000000000002
2019	12.016000000000005
2020	12.084000000000003
2021	12.141999999999996
2022	12.188999999999993
2023	12.225999999999999