Year	% of cohort
1995	18.9338397979736
2008	92.1695327758789
2009	95.2287063598633
2010	97.8643569946289
2011	98.7833709716797
2012	98.6670379638672
2013	98.712532043457
2014	95.7201309204102
2015	88.8438262939453
2016	93.1785430908203
2017	92.4020919799805
2018	89.0461807250977
2019	89.4376220703125
2020	91.9441375732422
2021	91.5132522583008