Year	% of total population
1960	81.529
1961	81.941
1962	82.228
1963	82.511
1964	82.792
1965	83.068
1966	83.34
1967	83.507
1968	83.672
1969	83.836
1970	83.999
1971	84.16
1972	84.32
1973	84.478
1974	84.636
1975	84.792
1976	84.947
1977	85.1
1978	85.252
1979	85.403
1980	85.552
1981	85.7
1982	85.67
1983	85.641
1984	85.611
1985	85.582
1986	85.552
1987	85.522
1988	85.493
1989	85.463
1990	85.433
1991	85.403
1992	85.285
1993	85.157
1994	85.028
1995	84.898
1996	84.767
1997	84.636
1998	84.503
1999	84.37
2000	84.235
2001	84.1
2002	84.222
2003	84.343
2004	84.463
2005	84.582
2006	84.7
2007	84.822
2008	84.943
2009	85.063
2010	85.182
2011	85.3
2012	85.402
2013	85.502
2014	85.602
2015	85.701
2016	85.8
2017	85.904
2018	86.012
2019	86.124
2020	86.241
2021	86.362
2022	86.488
2023	86.617