Year	% of total population
1960	26.240264005135874
1961	27.006115509339494
1962	27.661470340073574
1963	28.22313753828504
1964	28.799267928242955
1965	28.903926511439007
1966	28.985449164828463
1967	29.103820667702156
1968	29.22638126414578
1969	29.340554186981656
1970	29.446453914189238
1971	29.537653958890218
1972	29.64923518723262
1973	29.83683269983056
1974	30.104663169766198
1975	30.39086054113767
1976	30.67069338203882
1977	30.965769905789568
1978	31.444600488836
1979	32.115195939027224
1980	32.796546429449236
1981	33.47578330584036
1982	34.14590895795869
1983	34.724955698103365
1984	35.32677992079623
1985	35.92714280436388
1986	36.51997624378069
1987	37.10848816189813
1988	37.69992495669161
1989	38.271550417809344
1990	38.80736498567273
1991	39.43097855191088
1992	40.084739252431596
1993	40.73807039581779
1994	41.400424920131194
1995	42.06814717827999
1996	42.750255790418386
1997	43.448598898933724
1998	44.16198723075426
1999	44.88949974271487
2000	45.63971832233773
2001	46.51549882619177
2002	47.46222507684578
2003	48.42485749997758
2004	49.4018807555132
2005	50.392081953989894
2006	51.37309077190573
2007	52.35341796994969
2008	53.340938189250345
2009	54.32570116974758
2010	55.30535093244532
2011	56.225947343670114
2012	57.122397636936
2013	58.020390193275084
2014	58.91741305892347
2015	59.8083803792186
2016	60.69490272129299
2017	61.57383429687998
2018	62.43636186165218
2019	63.27945474806162
2020	64.09474915778188
2021	64.88093308520004
2022	65.65390071043106
2023	66.40835952012534