Year	% of total population
1960	81.368
1961	80.709
1962	80.031
1963	79.336
1964	78.622
1965	77.892
1966	77.144
1967	76.378
1968	75.593
1969	74.793
1970	73.975
1971	73.14
1972	72.287
1973	71.419
1974	70.53
1975	69.618
1976	68.689
1977	67.74799999999999
1978	66.791
1979	65.819
1980	64.833
1981	63.837
1982	62.827
1983	61.806
1984	60.166
1985	57.627
1986	55.044
1987	52.433
1988	49.805
1989	47.186
1990	44.578
1991	42
1992	44.981
1993	47.991
1994	51.019
1995	54.04
1996	57.036
1997	56.696
1998	56.354
1999	56.012
2000	55.669
2001	55.327
2002	54.983
2003	54.639
2004	54.294
2005	53.949
2006	53.604
2007	53.258
2008	52.912
2009	52.555
2010	52.187
2011	51.807
2012	51.417
2013	51.015
2014	50.603
2015	50.18
2016	49.746
2017	49.303
2018	48.849
2019	48.385
2020	47.911
2021	47.427
2022	46.935
2023	46.433