Year	% of total population
1960	66.536
1961	66.047
1962	65.286
1963	64.517
1964	63.74
1965	62.957
1966	62.167
1967	61.37
1968	60.565
1969	59.757
1970	58.943
1971	57.991
1972	56.936
1973	55.878
1974	54.813
1975	53.743
1976	52.669
1977	51.595
1978	50.518
1979	49.44
1980	48.362
1981	47.69
1982	47.223
1983	46.756
1984	46.289
1985	45.824
1986	45.359
1987	44.895
1988	44.432
1989	43.97
1990	43.509
1991	43.22
1992	43.281
1993	43.341
1994	43.402
1995	43.463
1996	43.524
1997	43.584
1998	43.645
1999	43.706
2000	43.767
2001	43.837
2002	43.987
2003	44.137
2004	44.287
2005	44.437
2006	44.588
2007	44.739
2008	44.889
2009	45.04
2010	45.315
2011	45.58
2012	45.72
2013	45.86
2014	46
2015	46.111
2016	46.194
2017	46.249
2018	46.274
2019	46.271
2020	46.24
2021	46.18
2022	46.091
2023	45.973