Year	% of cohort
1971	46.6025886535645
1972	50.2652015686035
1973	55.447338104248
1974	52.4974212646484
1975	58.5864295959473
1976	56.5824089050293
1977	58.3933486938477
1978	72.3289413452148
1979	63.1015815734863
1987	62.6783103942871
1993	35.1019897460938
1994	72.9085083007812
1995	74.5563430786133
1996	83.6977767944336
1998	73.6279678344727
1999	74.3182220458984
2000	73.9639663696289
2001	75.6438598632812
2002	71.4482192993164
2003	71.9887237548828
2004	75.2786636352539
2005	74.952278137207
2006	79.213623046875
2008	97.2667465209961
2009	91.2082595825195
2010	93.3752517700195
2011	84.0342788696289
2012	93.8411865234375
2014	81.1959915161133
2015	89.9929428100586
2016	92.1754684448242
2017	98.561653137207
2018	96.6139373779297
2019	97.6888198852539
2020	99.6386489868164
2021	99.1982574462891