Year	% of total population
1960	96.087
1961	95.665
1962	95.2
1963	94.688
1964	94.124
1965	93.506
1966	92.843
1967	92.271
1968	91.656
1969	90.999
1970	90.295
1971	89.542
1972	88.736
1973	87.88
1974	86.967
1975	85.996
1976	84.963
1977	84.526
1978	84.197
1979	83.863
1980	83.52199999999999
1981	83.176
1982	82.824
1983	82.467
1984	82.10300000000001
1985	81.73400000000001
1986	81.35900000000001
1987	80.97800000000001
1988	80.59
1989	80.197
1990	79.798
1991	79.393
1992	78.982
1993	78.566
1994	78.143
1995	77.714
1996	77.27799999999999
1997	76.919
1998	77.051
1999	77.18299999999999
2000	77.314
2001	77.445
2002	77.575
2003	77.70400000000001
2004	77.834
2005	77.962
2006	78.09
2007	78.17099999999999
2008	77.955
2009	77.738
2010	77.52
2011	77.3
2012	77.151
2013	77.001
2014	76.851
2015	76.7
2016	76.541
2017	76.375
2018	76.201
2019	76.019
2020	75.82900000000001
2021	75.631
2022	75.424
2023	75.21000000000001