Year	% of cohort
1976	33.9501991271973
1988	35.4166107177734
1990	50.023681640625
1994	28.8922100067139
1995	41.3966407775879
1996	60.2941398620605
1998	51.8968200683594
1999	55.8869285583496
2000	54.8502998352051
2001	61.5424003601074
2002	53.5207214355469
2004	33.4056205749512
2005	37.9500503540039
2009	36.5061683654785
2010	56.7333908081055
2011	46.5786895751953
2012	56.6132202148438
2015	35.8034515380859
2016	28.8620090484619
2017	78.5962219238281