Year	% of total population
1960	89.596
1961	89.417
1962	89.235
1963	89.05
1964	88.862
1965	88.67099999999999
1966	88.478
1967	88.282
1968	88.082
1969	87.88
1970	87.675
1971	87.467
1972	87.256
1973	87.042
1974	86.825
1975	86.605
1976	86.381
1977	86.155
1978	85.926
1979	85.632
1980	85.26
1981	84.88
1982	84.492
1983	84.095
1984	83.69
1985	83.27799999999999
1986	82.857
1987	82.42699999999999
1988	81.989
1989	81.565
1990	81.285
1991	81.002
1992	80.715
1993	80.426
1994	80.132
1995	79.836
1996	79.536
1997	79.23400000000001
1998	78.92699999999999
1999	78.618
2000	78.327
2001	78.047
2002	77.765
2003	77.479
2004	77.191
2005	76.901
2006	76.608
2007	76.313
2008	76.015
2009	75.714
2010	75.538
2011	75.439
2012	75.339
2013	75.239
2014	75.139
2015	75.039
2016	74.938
2017	74.837
2018	74.726
2019	74.606
2020	74.475
2021	74.33500000000001
2022	74.184
2023	74.024