Year	% of total population
1960	89.358
1961	89.029
1962	88.691
1963	88.343
1964	87.986
1965	87.621
1966	87.253
1967	86.926
1968	86.59
1969	86.249
1970	85.9
1971	85.474
1972	85.036
1973	84.589
1974	84.131
1975	83.666
1976	83.245
1977	82.816
1978	82.378
1979	81.932
1980	81.476
1981	81.012
1982	80.539
1983	80.057
1984	79.566
1985	79.06700000000001
1986	78.55799999999999
1987	78.041
1988	77.513
1989	76.979
1990	76.434
1991	75.881
1992	75.319
1993	74.749
1994	74.464
1995	74.20400000000001
1996	73.94200000000001
1997	73.679
1998	73.414
1999	73.14699999999999
2000	72.879
2001	72.60900000000001
2002	72.337
2003	72.064
2004	71.789
2005	71.186
2006	70.575
2007	69.957
2008	69.33
2009	68.699
2010	68.062
2011	67.42
2012	66.773
2013	66.122
2014	65.46600000000001
2015	64.807
2016	64.144
2017	63.478
2018	62.809
2019	62.139
2020	61.466
2021	60.793
2022	60.118
2023	59.444