Year	% of cohort
1960	29.768089527611192
1961	36.89779086739503
1962	47.776151245063346
1963	48.54031292066467
1964	49.71280566492087
1965	49.99523053776893
1966	51.42100090778231
1967	52.82011703418428
1968	53.63122195339977
1969	54.731273323952635
1970	55.91569464446862
1971	57.20720550937588
1972	58.26778184932729
1973	59.925432769921606
1974	61.163602947103215
1975	62.40199892436924
1976	63.70838995834625
1977	64.965423331977
1978	66.11273570176017
1979	67.18081699029457
1980	68.16309192452006
1981	69.02683415942339
1982	69.90768893466564
1983	70.73205372874249
1984	71.41683218720688
1985	72.12571230640155
1986	72.83449268488316
1987	73.44647761448064
1988	73.98536315768447
1989	74.54031171804591
1990	74.83315792167016
1991	74.88868523888564
1992	75.82386522527987
1993	76.75304858161225
1994	76.9675888024819
1995	77.49535484358988
1996	77.80150742709058
1997	78.38867431307416
1998	79.12855133621687
1999	79.25632202907445
2000	79.84440480325021
2001	81.0180094552124
2002	81.46042293808377
2003	82.20151217098095
2004	82.09978803674974
2005	82.96452640528149
2006	83.44186450336868
2007	83.7809970444896
2008	83.46199801584451
2009	84.4458974941797
2010	84.67056744017377
2011	85.02275779670722
2012	85.365758500539
2013	85.74923347444317
2014	86.05816520333937
2015	86.27094181130649
2016	86.48481273244545
2017	86.6709883395509
2018	87.02846914447744
2019	87.19142420766185
2020	87.04787374728151
2021	86.44062865967183
2022	87.0651854465612