Year	% of cohort
1978	11.6195001602173
1979	22.8409690856934
1980	25.5144100189209
1981	21.6138191223145
1982	15.9667196273804
1984	31.4419593811035
1985	32.450439453125
1986	43.0039482116699
1987	43.9544982910156
2001	86.8052291870117
2002	85.1007232666016
2003	85.8718338012695
2005	84.9063568115234
2007	84.5180969238281
2010	89.5657196044922
2012	89.4520721435547
2013	89.0675506591797
2014	88.4457931518555
2015	89.1862487792969
2019	88.6859893798828
2020	96.6530990600586