Year	% of cohort
1978	14.4454298019409
1979	16.3419303894043
1980	20.7553596496582
1981	20.0052604675293
1982	12.3391103744507
1984	28.7775592803955
1985	36.6399688720703
1986	37.0427894592285
1987	45.4968795776367
2001	91.269287109375
2002	82.8664169311523
2003	89.2205810546875
2005	90.1569366455078
2007	86.9853210449219
2010	89.0823822021484
2012	93.4926528930664
2013	92.291633605957
2014	89.5074081420898
2015	91.0121231079102
2019	88.7852401733398
2020	96.9170913696289