Year	% of total population
1960	87.871
1961	87.669
1962	87.465
1963	87.138
1964	86.32300000000001
1965	85.467
1966	84.56700000000001
1967	83.621
1968	82.627
1969	81.59
1970	80.504
1971	79.37
1972	78.186
1973	77.059
1974	76.325
1975	75.574
1976	74.807
1977	74.026
1978	73.22800000000001
1979	72.41499999999999
1980	71.586
1981	70.744
1982	69.887
1983	68.992
1984	67.993
1985	66.981
1986	65.951
1987	64.906
1988	63.845
1989	62.774
1990	61.688
1991	60.59
1992	59.48
1993	58.414
1994	57.528
1995	56.638
1996	55.742
1997	54.845
1998	53.943
1999	53.039
2000	52.132
2001	51.225
2002	50.317
2003	49.445
2004	48.712
2005	47.98
2006	47.249
2007	46.519
2008	45.789
2009	45.063
2010	44.338
2011	43.616
2012	42.895
2013	42.18
2014	41.472
2015	40.772
2016	40.082
2017	39.401
2018	38.73
2019	38.069
2020	37.418
2021	36.778
2022	36.148
2023	35.528000000000006