Year	% of total population
1960	65.045
1961	64.656
1962	64.27799999999999
1963	63.899
1964	63.517
1965	63.134
1966	62.75
1967	62.364
1968	61.975
1969	61.586
1970	61.196
1971	60.803
1972	60.409
1973	60.015
1974	59.618
1975	59.221
1976	58.821
1977	58.422
1978	58.021
1979	57.619
1980	57.215
1981	56.779
1982	56.262
1983	55.743
1984	55.223
1985	54.702
1986	54.18
1987	53.658
1988	53.133
1989	52.609
1990	52.085
1991	51.531
1992	50.87
1993	50.211
1994	49.551
1995	48.891
1996	48.23
1997	47.572
1998	46.914
1999	46.257
2000	45.601
2001	44.956
2002	44.334
2003	43.713
2004	43.093
2005	42.478
2006	41.863
2007	41.251
2008	40.641
2009	40.036
2010	39.433
2011	38.833
2012	38.237
2013	37.648
2014	37.064
2015	36.486
2016	35.914
2017	35.348
2018	34.789
2019	34.236000000000004
2020	33.69
2021	33.150999999999996
2022	32.619
2023	32.093999999999994