Year	% of total population
1960	22.14326349447897
1961	22.57700730172007
1962	23.02329220896884
1963	23.48130364888796
1964	23.947879842260786
1965	24.417155096477416
1966	24.881300334703134
1967	25.25695081931525
1968	25.636863049290238
1969	26.037904579557733
1970	26.424962017952904
1971	26.7717314770602
1972	27.094765379706885
1973	27.40169388785736
1974	27.619224274525887
1975	27.809211921371922
1976	28.018461352285392
1977	28.181252208426372
1978	28.33811523768505
1979	28.49741046242722
1980	28.66605661366969
1981	28.86528157553046
1982	29.075251967499938
1983	29.299068883132446
1984	29.533227153608575
1985	29.76459294796066
1986	29.99285416322649
1987	30.39483286911701
1988	30.810598459977
1989	31.209433596309193
1990	31.58691089338564
1991	31.943032225450942
1992	32.27661424310367
1993	32.598801599565974
1994	32.911647066686555
1995	33.20111752891738
1996	33.53271568204011
1997	33.76567611393459
1998	33.985270518979874
1999	34.208315428434155
2000	34.459670914567766
2001	34.70444070685251
2002	34.91212171609759
2003	35.11724691452404
2004	35.33865798316979
2005	35.56032409119653
2006	35.80196080589579
2007	36.05718209334983
2008	36.344373397183936
2009	36.63267762171985
2010	36.89828979912671
2011	37.13983544982048
2012	37.37079484866076
2013	37.59784789596267
2014	37.82249269158046
2015	38.044097757036404
2016	38.259760265422855
2017	38.46854478008166
2018	38.67702272703732
2019	38.88279444652553
2020	39.09482359293741
2021	39.31228846775369
2022	39.55370278728573
2023	39.82153545879193