Year	% of cohort
1975	34.200611114502
1977	62.7431488037109
1978	72.3158111572266
1987	78.563591003418
2005	77.1393814086914
2006	78.5308303833008
2008	88.9645614624023
2009	81.7649993896484
2010	85.8132095336914
2011	94.22216796875
2012	90.6412582397461
2013	87.1332473754883
2014	94.8616790771484
2015	93.3693389892578
2016	69.768928527832
2017	85.1021270751953
2018	89.3631286621094
2019	88.1028900146484
2020	75.7639465332031