Year	% of cohort
1960	58.394174592607186
1961	59.00146747973602
1962	60.540038311828006
1963	61.3051929934587
1964	62.33056861965887
1965	62.85404095314339
1966	63.310209650196214
1967	63.84584068932839
1968	64.26093372410307
1969	64.58398451400626
1970	65.01400034389412
1971	65.11208055484128
1972	65.60321227131207
1973	65.94078832584574
1974	66.40471970989988
1975	66.91737689020235
1976	67.36193134921812
1977	67.68221537570507
1978	68.04732647193947
1979	68.26612253489664
1980	68.60236792606068
1981	69.01342047323043
1982	69.31264517803896
1983	69.67052920900957
1984	70.18216301760584
1985	70.43567859704896
1986	70.8173555462832
1987	70.90846191075165
1988	71.20079246206826
1989	71.36250065023982
1990	71.6175472699331
1991	71.89508046416682
1992	72.39309599741344
1993	72.81193010011482
1994	73.12482774708566
1995	73.10280580714745
1996	73.33326233961185
1997	73.39284615465483
1998	73.71641397557191
1999	73.9013523782529
2000	74.29198250177366
2001	74.59264767279959
2002	74.77914316800083
2003	74.78262184268596
2004	75.36268516420394
2005	75.93319590781387
2006	76.53998153042556
2007	77.17110927281777
2008	77.56334741840693
2009	78.03769663301645
2010	78.2925380418673
2011	78.35964653386826
2012	78.5012673512533
2013	78.62095646397958
2014	78.92526180999921
2015	79.28337030746401
2016	79.81270149177683
2017	80.12894934791996
2018	80.57662531751535
2019	79.81780544206418
2020	79.92164196812703
2021	77.00609257246221
2022	77.82532928323621