Year	% of total population
1960	82.44800000000001
1961	82.071
1962	81.688
1963	81.299
1964	80.902
1965	80.501
1966	80.092
1967	79.90299999999999
1968	79.873
1969	79.843
1970	79.813
1971	79.783
1972	79.753
1973	79.723
1974	79.693
1975	79.663
1976	79.633
1977	79.496
1978	79.281
1979	79.065
1980	78.846
1981	78.627
1982	78.406
1983	78.18299999999999
1984	77.958
1985	77.732
1986	77.504
1987	77.39099999999999
1988	77.35900000000001
1989	77.328
1990	77.29599999999999
1991	77.264
1992	77.232
1993	77.2
1994	77.168
1995	77.136
1996	77.10300000000001
1997	77.07300000000001
1998	77.045
1999	77.01599999999999
2000	76.988
2001	76.959
2002	76.931
2003	76.902
2004	76.873
2005	76.845
2006	76.816
2007	76.773
2008	76.719
2009	76.66499999999999
2010	76.611
2011	76.557
2012	76.565
2013	76.618
2014	76.672
2015	76.725
2016	76.77799999999999
2017	76.831
2018	76.869
2019	76.893
2020	76.901
2021	76.896
2022	76.875
2023	76.84