Year	% of cohort
1975	42.7907981872559
1977	75.9735794067383
1978	80.121208190918
1987	87.3420562744141
2005	85.1630477905273
2006	81.1934204101562
2008	99.6221694946289
2009	81.4264602661133
2010	91.8181076049805
2011	97.5614166259766
2012	95.7951202392578
2013	95.1732482910156
2014	98.9781036376953
2015	97.803092956543
2016	76.9033966064453
2017	90.4634399414062
2018	97.1455688476562
2019	94.6721267700195
2020	80.4097900390625