Year	% of cohort
1994	92.7120819091797
1995	86.2886123657227
1996	85.047607421875
1998	73.8020935058594
1999	91.0668106079102
2000	91.9779434204102
2002	90.2654495239258
2003	90.071891784668
2004	87.16552734375
2005	87.7761993408203
2006	90.6647872924805
2010	79.5043334960938
2011	91.7386322021484
2014	92.3025436401367
2015	94.0213012695312
2016	88.8954391479492
2017	87.4387512207031
2018	94.2589874267578
2019	90.2646484375