Year	% of cohort
1979	36.6526985168457
1983	42.8357810974121
1991	60.0054817199707
1992	55.4812393188477
1993	54.1450309753418
1994	49.2156600952148
1995	54.8127784729004
1996	54.3149299621582
1997	52.2733612060547
2005	80.955207824707
2007	76.1914215087891
2008	71.7168884277344
2009	79.7890396118164
2010	74.7994003295898
2011	69.5574493408203
2012	69.6548690795898
2013	75.4457168579102
2015	82.5824127197266
2016	82.6911697387695
2019	76.7030181884766
2020	72.671516418457
2021	89.2700805664062