Year	% of total population
1960	89.254
1961	88.768
1962	88.263
1963	87.738
1964	87.19200000000001
1965	86.627
1966	86.041
1967	85.43299999999999
1968	84.803
1969	84.152
1970	83.477
1971	82.78
1972	82.059
1973	81.452
1974	81.256
1975	81.057
1976	80.857
1977	80.656
1978	80.453
1979	80.248
1980	80.041
1981	79.834
1982	79.624
1983	79.099
1984	78.09700000000001
1985	77.063
1986	75.995
1987	74.893
1988	73.756
1989	72.59
1990	71.39
1991	70.16
1992	68.89699999999999
1993	67.87299999999999
1994	67.821
1995	67.768
1996	67.71600000000001
1997	67.663
1998	67.61
1999	67.55799999999999
2000	67.505
2001	67.452
2002	67.399
2003	67.346
2004	67.293
2005	67.24000000000001
2006	67.187
2007	67.134
2008	67.081
2009	67.007
2010	66.911
2011	66.793
2012	66.654
2013	66.493
2014	66.311
2015	66.106
2016	65.87899999999999
2017	65.63
2018	65.358
2019	65.064
2020	64.747
2021	64.407
2022	64.044
2023	63.658