Year	% of cohort
1960	37.93144316094688
1961	41.246088928491
1962	46.03387073046763
1963	46.66027865532425
1964	47.502575288278535
1965	47.41794807926489
1966	48.31639324597107
1967	49.21296464661481
1968	50.24610220019418
1969	50.984178040501305
1970	51.44526852265707
1971	52.008270753907645
1972	53.38469952097238
1973	54.505930485428294
1974	55.36698244293459
1975	56.330164880426864
1976	57.26479243485519
1977	58.32857124517978
1978	59.24934781668763
1979	60.21497622638978
1980	61.095532464639724
1981	61.94617407710325
1982	62.716858003553625
1983	63.386984077470714
1984	64.04563554251666
1985	64.64095888902386
1986	65.36890874463923
1987	65.95687299900885
1988	66.40458488748766
1989	66.97688338492931
1990	67.32073489860889
1991	67.45564243638938
1992	68.05686878953162
1993	68.54711831481782
1994	68.85275849894607
1995	69.21302042739454
1996	69.4756380389011
1997	70.04494944704896
1998	70.60485086861146
1999	71.07309998827519
2000	71.62544010609959
2001	72.3709982437604
2002	72.86465327259464
2003	73.43116647933721
2004	73.71548336125592
2005	74.45462574917879
2006	75.08717824542086
2007	75.52158685578318
2008	75.72170305056449
2009	76.42405463038376
2010	76.8451408022581
2011	77.352472881382
2012	77.77376943842953
2013	78.17570300343256
2014	78.50758396285002
2015	78.75563398869303
2016	79.06441241711731
2017	79.39320334524251
2018	79.70825559776692
2019	79.97796778710732
2020	78.81400798981636
2021	76.83985565690381
2022	77.86139742465073