Year	% of cohort
1995	19.0443706512451
2008	92.7383804321289
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