Year	% of cohort
1994	97.9565200805664
1995	98.5313415527344
1996	97.3755722045898
1998	98.4665069580078
1999	99.1047210693359
2000	97.1751022338867
2001	98.5542984008789
2002	96.3899765014648
2003	98.4445877075195
2004	98.7551727294922
2005	94.7649078369141
2006	96.6920013427734
2012	97.5698699951172
2013	96.0595474243164
2017	97.5752410888672
2018	90.9682006835938
2019	93.4107971191406
2020	94.7927932739258
2021	94.3964385986328