Year	% of cohort
1975	28.1963005065918
1977	57.223819732666
1978	69.5566635131836
1981	88.7380523681641
1982	76.394287109375
1983	75.5362777709961
1984	65.8235473632812
1987	72.8867263793945
2005	74.6551208496094
2006	67.7775573730469
2008	90.3483581542969
2009	77.1606826782227
2010	85.1052398681641
2011	91.7102127075195
2012	87.4977035522461
2013	86.0627899169922
2014	91.6662902832031
2015	91.2694931030273
2016	68.3927764892578
2017	85.0068664550781
2018	89.6306991577148
2019	87.664680480957
2020	70.1373062133789