Year	% of total population
1960	81.212
1961	80.498
1962	79.763
1963	79.007
1964	78.23
1965	77.434
1966	76.617
1967	75.78
1968	74.92099999999999
1969	74.045
1970	73.14699999999999
1971	72.231
1972	71.294
1973	70.34100000000001
1974	69.368
1975	68.378
1976	67.37
1977	66.348
1978	65.31
1979	64.256
1980	63.187
1981	62.108
1982	61.016
1983	59.912
1984	58.796
1985	57.675
1986	56.544
1987	55.406
1988	54.261
1989	53.114
1990	51.963
1991	50.835
1992	49.782
1993	48.733
1994	47.683
1995	46.635
1996	45.588
1997	44.549
1998	43.512
1999	42.482
2000	41.456
2001	40.441
2002	39.432
2003	38.432
2004	37.873
2005	37.535
2006	37.197
2007	36.861
2008	36.525
2009	36.192
2010	35.86
2011	35.528000000000006
2012	35.196
2013	34.863
2014	34.528999999999996
2015	34.194
2016	33.858999999999995
2017	33.522999999999996
2018	33.187
2019	32.849999999999994
2020	32.512
2021	32.17400000000001
2022	31.836
2023	31.498000000000005