Year	% of cohort
1990	67.9457702636719
1998	69.91796875
1999	57.4523010253906
2001	80.0726089477539
2002	78.6991500854492
2003	76.9859313964844
2015	79.6969528198242
2017	89.7041702270508
2018	96.5970077514648
2019	95.5730667114258
2020	95.4700164794922