Year	% of cohort
1995	83.1693420410156
2000	93.4321899414062
2003	91.2317504882812
2006	95.3582534790039
2007	93.3642578125
2008	94.3882522583008
2009	95.4425582885742
2010	97.8855972290039
2011	99.1443328857422
2012	99.837272644043
2013	99.1460571289062
2014	96.3899307250977
2015	89.0525665283203
2016	93.6810913085938
2017	93.2599334716797
2018	88.6329116821289
2019	90.0643081665039
2020	92.0852432250977
2021	91.8866500854492