Year	% of cohort
1975	55.6954193115234
1976	60.064640045166
1992	76.87744140625
1993	81.3124237060547
1994	80.4686584472656
1995	83.3349990844727
1996	82.3636779785156
1998	85.6517715454102
1999	86.0332336425781
2000	85.9379425048828
2001	87.952766418457
2002	90.1802368164062
2003	89.2757415771484
2004	90.8448333740234
2005	91.0266036987305
2006	91.2426681518555
2007	90.4485778808594
2008	92.9481430053711
2009	93.1682205200195
2010	94.1685333251953
2011	95.0118789672852
2012	93.5879135131836
2013	94.9898071289062
2014	95.2061767578125
2015	90.4742279052734
2016	99.3730773925781
2017	94.9506988525391
2018	96.4332885742188
2019	96.2416076660156
2020	97.5704879760742
2021	96.8148880004883