Year	% of cohort
1983	51.1244583129883
1991	68.3183135986328
1992	64.0530471801758
1993	63.2715187072754
1994	56.1120796203613
1995	64.3084106445312
1996	63.9079399108887
1997	59.7445106506348
2005	86.55712890625
2007	80.3368682861328
2008	79.6315994262695
2009	86.0759582519531
2010	82.9491577148438
2011	78.1496734619141
2012	78.6609268188477
2013	83.1443481445312
2015	88.3823394775391
2016	88.7288284301758
2019	83.6223831176758
2020	80.2631225585938
2021	93.8471527099609