Year	% of cohort
1994	93.2481231689453
1996	91.9054107666016
1997	90.2609710693359
2000	94.9526977539062
2001	94.7675399780273
2002	98.2067489624023
2003	99.6688003540039
2004	99.4414367675781
2005	99.2707290649414
2006	99.5783004760742
2007	99.4525985717773
2008	98.9490203857422
2009	98.7777328491211
2010	99.8394317626953
2011	99.5523529052734
2012	99.2758407592773
2013	98.895751953125
2014	98.772216796875
2015	99.031608581543
2016	98.2533264160156
2017	99.1772766113281
2018	99.1699295043945
2019	97.1441421508789