Year	% of cohort
1960	34.117470370782236
1961	37.15275674015182
1962	41.61540514426214
1963	42.394255186494284
1964	43.271418985062205
1965	42.564685055970465
1966	43.85716993944603
1967	44.62014301875387
1968	45.64435125067965
1969	46.24783308415743
1970	47.05461174246121
1971	48.12697854855576
1972	48.906586323610924
1973	49.99948405069042
1974	50.78811777394135
1975	51.65446798331136
1976	52.44713043796366
1977	53.160085971954125
1978	53.76982856415929
1979	54.44298820572627
1980	54.95604877830063
1981	55.5999550234019
1982	56.35245131490143
1983	57.057826561279036
1984	57.80954292302866
1985	58.59904334040733
1986	59.55039845418068
1987	60.11834978888775
1988	60.53794862945127
1989	61.09517120027415
1990	61.33563908165058
1991	61.87389039662677
1992	62.29185635872523
1993	62.470867425555596
1994	62.861611788555024
1995	63.3496037953054
1996	63.96045009150804
1997	64.60476451042358
1998	65.11695079987734
1999	65.39084253577032
2000	65.78532503353026
2001	66.26392825950866
2002	66.78963382118307
2003	67.17738732764263
2004	67.61136130437622
2005	68.28478638604047
2006	68.8754932276724
2007	69.30891055929742
2008	69.58790434345893
2009	70.13008388310047
2010	70.4891093313167
2011	70.96985782347461
2012	71.46523236269105
2013	71.98927021340917
2014	72.61219178029546
2015	73.08991174449388
2016	73.45435653711398
2017	73.73933099331315
2018	74.24506822309318
2019	74.55611464747845
2020	72.76261603315707
2021	70.07787136925052
2022	71.51536010193469