Year	% of total population
1960	83.321
1961	83.05199999999999
1962	82.776
1963	82.497
1964	82.213
1965	81.92699999999999
1966	81.637
1967	81.343
1968	81.04599999999999
1969	80.745
1970	80.441
1971	80.1
1972	79.72800000000001
1973	79.351
1974	78.969
1975	78.581
1976	78.188
1977	77.791
1978	77.388
1979	76.98
1980	76.482
1981	75.005
1982	73.465
1983	71.867
1984	70.208
1985	68.5
1986	66.11500000000001
1987	63.645
1988	61.098
1989	58.496
1990	55.88
1991	54.956
1992	54.027
1993	53.098
1994	52.166
1995	51.232
1996	50.296
1997	49.363
1998	48.428
1999	47.495
2000	46.565
2001	45.709
2002	44.854
2003	44.003
2004	43.154
2005	42.311
2006	41.471
2007	40.637
2008	39.806
2009	38.984
2010	38.179
2011	37.678
2012	37.179
2013	36.683
2014	36.19
2015	35.7
2016	35.215999999999994
2017	34.739000000000004
2018	34.268
2019	33.80500000000001
2020	33.348
2021	32.897999999999996
2022	32.455
2023	32.018