Year	% of cohort
1960	78.7654374226067
1961	79.35794031050675
1962	79.24577370428871
1963	79.71950714026643
1964	80.51146067151645
1965	80.72457744437084
1966	81.18890391745292
1967	81.27572487296473
1968	81.39220015442038
1969	81.03347303614946
1970	81.71685634222952
1971	81.94035437061143
1972	82.48885228667456
1973	82.68254854074411
1974	83.18510783956872
1975	83.31847157687375
1976	83.63102211010283
1977	84.1076655590379
1978	84.33017502050586
1979	84.60609781404945
1980	84.66593705634037
1981	85.0209814781076
1982	85.31522606483964
1983	85.39626018303518
1984	85.74677250204154
1985	85.90275966086463
1986	86.17575940209319
1987	86.3975556463703
1988	86.64097074210473
1989	86.85167702998072
1990	86.97581789634805
1991	87.05771656760857
1992	87.36931956630333
1993	87.54523960799592
1994	87.82501362084504
1995	87.99419257256417
1996	88.20994265258
1997	88.50185920411695
1998	88.77317371056961
1999	88.97719775187824
2000	89.23699943194298
2001	89.47658779600394
2002	89.5915349776944
2003	89.59658596922736
2004	89.8809894506658
2005	90.05467599593865
2006	90.3204821416288
2007	90.49293160600536
2008	90.69085422082352
2009	90.82623293247981
2010	91.06662536356377
2011	91.16272070823422
2012	91.29477155619543
2013	91.44766220153889
2014	91.66554307491907
2015	91.59033624952228
2016	91.79414296224373
2017	91.89301702275415
2018	91.9593800801677
2019	92.17531646235874
2020	92.07354258761045
2021	91.76994013906167
2022	92.08866861089993