Year	% of cohort
1978	19.8513793945312
1979	24.8438091278076
1980	26.4141292572021
1981	24.5297698974609
1982	24.9104595184326
1984	35.9600601196289
1985	62.355899810791
1986	48.2714614868164
1987	55.1003799438477
2001	95.2924575805664
2002	87.2651519775391
2003	94.4288482666016
2005	92.8719711303711
2007	90.797248840332
2010	91.9609832763672
2012	94.7481079101562
2013	94.491340637207
2014	92.2421112060547
2015	93.4745178222656
2019	91.9378509521484
2020	97.5135116577148