Year	% of cohort
1960	77.16807710782922
1961	77.74228620197505
1962	77.6782942194776
1963	78.12196955269818
1964	78.84949921282586
1965	79.03607939488997
1966	79.47748854720251
1967	79.7283651714322
1968	79.7626820061357
1969	79.69041408002029
1970	80.0855302212618
1971	80.49036446797597
1972	80.81895507382328
1973	81.07597774675402
1974	81.55940434575191
1975	81.81269385319996
1976	82.0986403590728
1977	82.48723528590736
1978	82.74008010142707
1979	83.06913399091727
1980	83.09431592089767
1981	83.58584027018367
1982	83.88349746407853
1983	83.96705358561114
1984	84.22310223387771
1985	84.38769773768423
1986	84.96000959386191
1987	85.14136641718231
1988	85.30176710184185
1989	85.62513697867672
1990	85.79320508401773
1991	85.97013123685721
1992	86.16287875493889
1993	85.93849981959832
1994	86.05399004857686
1995	86.1544194651724
1996	86.52962639945824
1997	86.83073114011695
1998	87.09114691573983
1999	87.09330878774438
2000	87.3011766317485
2001	87.50213450043198
2002	87.5702105814969
2003	87.62973236937833
2004	88.0285000704646
2005	88.16918093054868
2006	88.48426830574172
2007	88.7626677792215
2008	88.93496307536519
2009	89.14797143867217
2010	89.35937085919946
2011	89.52256282190577
2012	89.72498404981123
2013	89.87845028940919
2014	90.01099746502089
2015	90.10710141485184
2016	90.2555620362725
2017	90.44363220299303
2018	90.5574156804885
2019	90.73794107436404
2020	89.66291300136533
2021	89.12365298124809
2022	89.85915568335453