Year	% of total population
1960	25.287150127226464
1961	25.942004948906582
1962	26.52700338975857
1963	27.09765904181623
1964	27.745876574841837
1965	28.522127987663843
1966	29.428627483099966
1967	30.48659812206644
1968	31.63729346852668
1969	32.759085744090314
1970	33.675570272259016
1971	34.17900289263229
1972	34.566365285937806
1973	34.88998487556908
1974	35.24643120689661
1975	35.690748162992655
1976	36.211855102117255
1977	36.80696346995004
1978	37.4704458109024
1979	38.17722234988422
1980	39.22429819089208
1981	41.29697842933591
1982	43.51043325411531
1983	45.86453358331788
1984	48.36432738570476
1985	51.000207284572106
1986	53.79348735934377
1987	56.74921916992315
1988	59.88206907629413
1989	63.18762568995764
1990	65.78314956177552
1991	65.8264904789577
1992	65.91138064072726
1993	65.86527384755125
1994	65.76287043017486
1995	65.66397953030366
1996	65.43615448947621
1997	65.33344150576018
1998	65.46323412149
1999	65.64189026497067
2000	65.82298611375359
2001	65.60304432783924
2002	65.43945250949277
2003	65.31960131674724
2004	65.22734720051176
2005	65.24278516403314
2006	65.44060334057427
2007	65.74555345698315
2008	66.05249961046205
2009	66.33371742669921
2010	66.58987914900477
2011	67.28321062800987
2012	68.02008976229939
2013	68.72101544163958
2014	69.76822936263075
2015	70.92077350433257
2016	72.21919222044271
2017	73.89746325579213
2018	76.85765499221195
2019	76.75672747608256
2020	74.6114420685059
2021	74.9522556979771
2022	75.85174805977306
2023	76.10103406722607