Year	% of total population
1960	38.387
1961	37.125
1962	36.067
1963	35.022999999999996
1964	33.991
1965	32.977999999999994
1966	31.977999999999994
1967	30.995000000000005
1968	30.027
1969	29.08
1970	28.147999999999996
1971	27.236000000000004
1972	26.424999999999997
1973	25.674999999999997
1974	24.936999999999998
1975	24.214
1976	23.504000000000005
1977	22.811000000000007
1978	22.132000000000005
1979	21.467
1980	20.814999999999998
1981	20.180000000000007
1982	19.617999999999995
1983	19.093000000000004
1984	18.578000000000003
1985	18.075000000000003
1986	17.581999999999994
1987	17.099999999999994
1988	16.628
1989	16.167
1990	15.715999999999994
1991	15.335999999999999
1992	14.988
1993	14.647999999999996
1994	14.313999999999993
1995	13.986000000000004
1996	13.664000000000001
1997	13.349999999999994
1998	13.040999999999997
1999	12.738
2000	12.441000000000003
2001	12.150000000000006
2002	12.123999999999995
2003	12.097999999999999
2004	12.072000000000003
2005	12.046000000000006
2006	12.019999999999996
2007	11.994
2008	11.968999999999994
2009	11.942999999999998
2010	11.917000000000002
2011	11.891999999999996
2012	11.876999999999995
2013	11.867000000000004
2014	11.855999999999995
2015	11.846000000000004
2016	11.834999999999994
2017	11.816999999999993
2018	11.792000000000002
2019	11.760000000000005
2020	11.721000000000004
2021	11.674999999999997
2022	11.622
2023	11.561999999999998