Year	% of total population
1960	22.627607243546205
1961	23.21231881658893
1962	23.739121011088592
1963	24.203537794773677
1964	24.678616763585467
1965	24.679241688605448
1966	24.67869979074472
1967	24.728554109159948
1968	24.798477101990347
1969	24.87410926612303
1970	24.95306503630331
1971	25.069605883829162
1972	25.171015160942208
1973	25.352087869764073
1974	25.610799274209562
1975	25.74440963495417
1976	25.937316388563097
1977	26.124955144535026
1978	26.5153175987599
1979	27.12387419595595
1980	27.75934314092915
1981	28.424227420331853
1982	29.088301753289475
1983	29.662156612388223
1984	30.25183983075962
1985	30.84472634341767
1986	31.449824450980298
1987	32.06881437894541
1988	32.69416699848667
1989	33.33210720972686
1990	33.98030552705161
1991	34.673839101590474
1992	35.37577708059422
1993	36.09075004288774
1994	36.82255588114076
1995	37.56785192710229
1996	38.32656017778238
1997	39.083295033071074
1998	39.85384175290007
1999	40.633127655632954
2000	41.44054203207081
2001	42.43251637059522
2002	43.515802577913405
2003	44.599636719178704
2004	45.6864338869016
2005	46.769354377193096
2006	47.82140665720909
2007	48.858620052414885
2008	49.898381618332024
2009	50.92858191468232
2010	51.954085638123324
2011	52.882468474796376
2012	53.775994456616004
2013	54.6637466620364
2014	55.552314337344825
2015	56.438638125563024
2016	57.32220600456049
2017	58.197239072946026
2018	59.054703666380824
2019	59.89091781044175
2020	60.69866292425829
2021	61.4733309942417
2022	62.23580987916069
2023	62.987133290433924