Year	% of total population
1960	64.431
1961	64.33
1962	64.229
1963	64.084
1964	63.921
1965	63.757
1966	63.593
1967	63.429
1968	63.265
1969	63.1
1970	62.935
1971	62.77
1972	62.604
1973	62.084
1974	61.553
1975	61.019
1976	60.482
1977	59.944
1978	59.402
1979	58.859
1980	58.312
1981	57.765
1982	57.215
1983	56.488
1984	55.753
1985	55.017
1986	54.278
1987	53.537
1988	52.793
1989	52.051
1990	51.306
1991	50.561
1992	49.814
1993	49.156
1994	48.512
1995	47.869
1996	47.226
1997	46.586
1998	45.946
1999	45.307
2000	44.669
2001	44.034
2002	43.4
2003	43.023
2004	42.695
2005	42.367
2006	42.04
2007	41.714
2008	41.388
2009	41.063
2010	40.739
2011	40.416
2012	40.093
2013	39.803
2014	39.526
2015	39.25
2016	38.974
2017	38.7
2018	38.415
2019	38.121
2020	37.817
2021	37.504
2022	37.182
2023	36.851