Year	% of total population
1960	29.064
1961	30.052
1962	31.062
1963	32.091
1964	33.14
1965	34.202
1966	35.282
1967	36.377
1968	37.488
1969	38.609
1970	39.744
1971	40.749
1972	41.341
1973	41.933
1974	42.53
1975	43.128
1976	43.729
1977	44.33
1978	44.934
1979	45.539
1980	46.146
1981	46.703
1982	47.112
1983	47.521
1984	47.932
1985	48.341
1986	48.751
1987	49.161
1988	49.573
1989	49.982
1990	50.393
1991	50.756
1992	50.981
1993	51.204
1994	51.428
1995	51.651
1996	51.875
1997	52.098
1998	52.322
1999	52.545
2000	52.769
2001	52.992
2002	53.215
2003	53.437
2004	53.661
2005	53.883
2006	54.105
2007	54.328
2008	54.55
2009	54.772
2010	54.993
2011	55.215
2012	55.356
2013	55.469
2014	55.583
2015	55.696
2016	55.81
2017	55.942
2018	56.092
2019	56.26
2020	56.446
2021	56.651
2022	56.873
2023	57.113