Year	% of total population
1960	79.563
1961	79.685
1962	79.898
1963	80.11
1964	80.321
1965	80.529
1966	80.736
1967	80.941
1968	81.145
1969	81.346
1970	81.547
1971	81.636
1972	81.646
1973	81.656
1974	81.666
1975	81.676
1976	81.686
1977	81.696
1978	81.706
1979	81.71600000000001
1980	81.726
1981	81.813
1982	81.957
1983	82.099
1984	82.241
1985	82.381
1986	82.521
1987	82.66
1988	82.799
1989	82.936
1990	83.072
1991	83.179
1992	83.264
1993	83.349
1994	83.434
1995	83.518
1996	83.71000000000001
1997	84.006
1998	84.298
1999	84.586
2000	84.87
2001	85.038
2002	85.094
2003	85.15
2004	85.205
2005	85.261
2006	85.316
2007	85.371
2008	85.426
2009	85.481
2010	85.536
2011	85.59
2012	85.633
2013	85.666
2014	85.687
2015	85.697
2016	85.697
2017	85.685
2018	85.662
2019	85.629
2020	85.584
2021	85.529
2022	85.462
2023	85.383