Year	% of cohort
1999	88.4962692260742
2006	83.5945434570312
2010	74.2456970214844
2011	90.6633529663086
2014	91.9938812255859
2015	89.8566207885742
2016	90.6621475219727
2017	85.0842895507812
2018	91.128532409668
2019	92.3006210327148