Year	% of total population
1960	69.846
1961	68.96000000000001
1962	67.999
1963	67.021
1964	66.02799999999999
1965	65.023
1966	64.003
1967	62.97
1968	61.924
1969	60.87
1970	59.804
1971	58.832
1972	58.161
1973	57.489
1974	56.814
1975	56.136
1976	55.455
1977	54.773
1978	54.089
1979	53.403
1980	52.715
1981	52.113
1982	51.763
1983	51.413
1984	51.063
1985	50.713
1986	50.363
1987	50.013
1988	49.662
1989	49.313
1990	48.963
1991	48.643
1992	48.412
1993	48.182
1994	47.952
1995	47.721
1996	47.491
1997	47.261
1998	47.032
1999	46.802
2000	46.572
2001	46.358
2002	46.19
2003	46.021
2004	45.853
2005	45.685
2006	45.517
2007	45.349
2008	45.181
2009	45.013
2010	44.845
2011	44.678
2012	44.494
2013	44.294
2014	44.077
2015	43.845
2016	43.597
2017	43.333
2018	43.053
2019	42.758
2020	42.447
2021	42.122
2022	41.781
2023	41.425