Year	% of cohort
1991	65.1388626098633
1994	67.404411315918
1999	74.4934005737305
2005	88.8544769287109
2006	81.8815689086914
2007	89.7451705932617
2008	93.3322296142578
2009	89.1311721801758
2010	93.0623168945312
2012	90.4905776977539
2013	95.7964019775391
2014	97.8578720092773
2016	90.7939910888672
2017	95.3937911987305
2019	91.9846420288086
2020	95.8585510253906