Year	% of cohort
1960	46.4696444129776
1961	47.173209070321754
1962	47.99716974627905
1963	48.077965765085025
1964	49.186817544682334
1965	50.32268685996366
1966	50.787934625511085
1967	51.191033733380394
1968	51.63112246836904
1969	51.69065586690543
1970	52.21028776175954
1971	52.60029068544477
1972	53.01588876448421
1973	53.56529623871138
1974	50.97689628717463
1975	52.99684511177284
1976	53.36012948144719
1977	53.95803474468714
1978	54.23826888862887
1979	54.751313393314966
1980	55.2617639748221
1981	55.805402172933526
1982	56.354098675522195
1983	56.58838653512083
1984	57.192927946457154
1985	57.57208410919319
1986	58.287571855826826
1987	58.81136390226081
1988	59.11214911582901
1989	60.46857334419097
1990	60.44975938978667
1991	60.45565606924243
1992	60.474026118585385
1993	60.70252974162148
1994	60.56727459869439
1995	60.73060805598766
1996	61.187753865719394
1997	61.37767549752426
1998	61.32017753673937
1999	61.37444459233821
2000	62.849601529943264
2001	63.29876028475103
2002	63.411958231058364
2003	63.90070449486314
2004	64.4265480580539
2005	65.05999985677289
2006	65.6449987721317
2007	66.26194893864572
2008	67.0745803245098
2009	67.77312728563287
2010	68.55033391529818
2011	68.95340610558533
2012	69.50477679891648
2013	69.98858332756652
2014	70.38830904520708
2015	70.88122034002137
2016	71.50186603079251
2017	72.11955858810109
2018	72.5602916895309
2019	72.80873783038234
2020	72.02558282661215
2021	70.69695926910478
2022	71.39143483640093