Year	% of cohort
1976	26.5026206970215
1988	30.0029392242432
1990	33.9725608825684
1994	21.0895309448242
1995	30.2133502960205
1996	54.1076507568359
1998	48.455680847168
1999	50.9259185791016
2000	49.2758598327637
2001	52.0839881896973
2002	49.3343696594238
2004	32.3256607055664
2005	33.8621215820312
2009	36.6499710083008
2010	55.9152183532715
2011	44.1981582641602
2012	53.3077087402344
2015	33.9855995178223
2016	26.3345203399658
2017	80.9661865234375