Year	% of cohort
1973	38.2849998474121
1986	52.7354316711426
1987	61.954719543457
1994	58.6283416748047
1999	62.0466690063477
2000	59.0063400268555
2001	61.3731117248535
2013	81.8377532958984
2014	93.2661972045898
2015	90.1634521484375
2016	87.7373733520508
2019	98.492919921875
2020	99.6244201660156