Year	% of cohort
1991	52.6562118530273
1999	56.648681640625
2002	63.7501106262207
2003	70.040168762207
2004	57.295970916748
2007	59.8239288330078
2012	54.6080589294434
2013	58.8278884887695
2014	68.4418106079102
2015	75.3918228149414
2016	73.6872100830078