Year	% of total population
1960	25.943
1961	26.394
1962	26.851
1963	27.314
1964	27.781
1965	28.252
1966	28.729
1967	29.21
1968	29.697
1969	30.187
1970	30.683
1971	31.182
1972	31.687
1973	32.195
1974	32.708
1975	33.225
1976	33.747
1977	34.271
1978	34.8
1979	35.333
1980	35.87
1981	36.409
1982	36.953
1983	37.5
1984	38.05
1985	38.602
1986	39.158
1987	39.717
1988	40.28
1989	40.843
1990	41.409
1991	41.949
1992	42.306
1993	42.663
1994	43.021
1995	43.38
1996	43.741
1997	44.1
1998	44.461
1999	44.823
2000	45.186
2001	45.548
2002	45.914
2003	46.283
2004	46.656
2005	47.032
2006	47.412
2007	47.794
2008	48.18
2009	48.569
2010	48.961
2011	49.356
2012	49.754
2013	50.154
2014	50.558
2015	50.964
2016	51.373
2017	51.784
2018	52.198
2019	52.614
2020	53.032
2021	53.452
2022	53.875
2023	54.299