Year	% of cohort
1971	46.2876510620117
1972	49.4340515136719
1973	56.1395416259766
1974	51.8689308166504
1975	57.6057395935059
1976	57.0356407165527
1977	57.9871597290039
1978	70.1391067504883
1979	61.761058807373
1980	69.2587127685547
1981	64.9743576049805
1982	63.3900413513184
1983	66.5589599609375
1984	57.4943084716797
1987	63.5007209777832
1993	36.0095710754395
1994	74.2275390625
1995	75.4010696411133
1996	84.6085815429688
1998	74.7910003662109
1999	74.5895004272461
2000	75.6770935058594
2001	76.2133483886719
2002	72.1035614013672
2003	72.5962829589844
2004	75.948127746582
2005	75.5703887939453
2006	80.5887069702148
2008	94.5139694213867
2009	91.271598815918
2010	94.9067993164062
2011	85.4677429199219
2012	93.7218475341797
2014	82.033088684082
2015	90.7285308837891
2016	91.9346313476562
2017	98.6425399780273
2018	96.642936706543
2019	96.5051574707031
2020	98.5388412475586
2021	99.5032272338867