Year	% of total population
1960	54.816
1961	54.607
1962	54.397
1963	54.187
1964	53.977
1965	53.767
1966	53.363
1967	52.205
1968	51.044
1969	49.885
1970	48.724
1971	47.731
1972	47.389
1973	47.048
1974	46.706
1975	46.366
1976	46.025
1977	45.685
1978	45.345
1979	45.006
1980	44.667
1981	44.366
1982	44.206
1983	44.045
1984	43.885
1985	43.725
1986	43.573
1987	43.447
1988	43.322
1989	43.196
1990	43.071
1991	42.927
1992	42.707
1993	42.488
1994	42.269
1995	42.051
1996	41.827
1997	41.581
1998	41.336
1999	41.09
2000	40.845
2001	40.601
2002	40.351
2003	40.075
2004	39.798
2005	39.523
2006	39.262
2007	39.06
2008	38.859
2009	38.658
2010	38.458
2011	38.258
2012	38.058
2013	37.859
2014	37.66
2015	37.462
2016	37.263
2017	37.053
2018	36.83
2019	36.595
2020	36.347
2021	36.088
2022	35.81699999999999
2023	35.534000000000006