Year	% of cohort
1960	29.41977922862286
1961	36.646527559226044
1962	47.68889460658504
1963	48.44901274006877
1964	49.62287902867938
1965	49.89260861278112
1966	51.32330758377
1967	52.72551508291296
1968	53.53185595565897
1969	54.63174276268707
1970	55.81785221316982
1971	57.11423695048479
1972	58.173585449814645
1973	59.840167225306146
1974	61.08069522452259
1975	62.32160122261042
1976	63.63177435644121
1977	64.89345031274607
1978	66.04239922592306
1979	67.1119695606716
1980	68.0942826384988
1981	68.95610105179374
1982	69.83513209792748
1983	70.6567115229211
1984	71.33702987500116
1985	72.04217233176017
1986	72.7471806678982
1987	73.35798094741625
1988	73.892836598559
1989	74.44663169959104
1990	74.7353474988955
1991	74.78545441805325
1992	75.72157489707034
1993	76.62048539764926
1994	76.879096043006
1995	77.63954248414547
1996	77.95055063292821
1997	78.54645725291192
1998	79.29945139404573
1999	79.43360520564916
2000	80.03163841870182
2001	81.22201938837773
2002	81.66963928408052
2003	82.24349500500311
2004	82.1456673670574
2005	83.0270848633638
2006	83.51685040414843
2007	83.86587829426813
2008	83.54329302085924
2009	84.52468337428292
2010	84.73685815822849
2011	85.07846244111747
2012	85.40976344522502
2013	85.78044983753085
2014	86.07743285736075
2015	86.3137180985415
2016	86.53094497028344
2017	86.7184064863287
2018	87.08105555208343
2019	87.24552100582456
2020	87.10022707529524
2021	86.48538012726404
2022	87.10911983243749