Year	% of cohort
1990	79.3721466064453
1993	83.0900573730469
1994	84.109016418457
1995	85.8216781616211
1996	86.4113998413086
1997	86.5738067626953
1998	86.1923065185547
1999	86.6353225708008
2000	87.0294036865234
2001	88.0456466674805
2002	88.4351119995117
2003	88.1936569213867
2004	88.1574401855469
2005	88.2612686157227
2006	88.3414077758789
2007	88.2445678710938
2008	89.6997222900391
2009	90.6119613647461
2010	90.4227676391602
2011	90.2763900756836
2012	89.3328628540039
2013	89.6950302124023
2014	90.5095901489258
2015	91.367301940918
2016	92.9656677246094
2017	93.4290618896484
2018	93.8773880004883
2019	94.0718002319336
2020	94.1935806274414
2021	94.136962890625