Year	% of cohort
1970	63.8969497680664
1971	72.9088821411133
1972	80.3206405639648
1973	88.7743530273438
1974	91.5588073730469
1975	85.6758575439453
1980	89.4403228759766
1981	81.1128768920898
1982	94.6104125976562
1983	84.5076293945312
1984	78.5523986816406
1985	86.1932220458984
1986	76.7987365722656
1987	75.6007995605469
1988	80.212760925293
1990	78.4510116577148
1991	81.8158798217773
1992	83.205451965332
1993	78.7446365356445
1996	81.3092575073242
1997	76.6171798706055
1998	80.8948669433594
1999	79.728141784668
2000	81.3610534667969
2001	96.5420303344727
2003	87.7673568725586
2004	83.9535293579102
2005	84.9689712524414
2006	86.8568572998047
2008	80.8660736083984
2009	89.8206100463867
2012	80.7652893066406
2015	63.877311706543
2017	94.8204803466797
2018	88.5483093261719
2019	84.4770736694336