Year % of cohort 1994 85.5478897094727 1995 87.0911407470703 1996 87.8925170898438 1997 88.1940307617188 1998 88.0689468383789 1999 88.3913879394531 2000 89.017448425293 2001 89.5952911376953 2002 89.4665908813477 2003 88.9134063720703 2004 88.479621887207 2005 88.4974212646484 2006 88.956657409668 2007 89.3689422607422 2008 90.7830429077148 2009 92.06298828125 2010 92.1486968994141 2011 92.3752593994141 2012 91.1775588989258 2013 91.3488311767578 2014 92.5901718139648 2015 93.98486328125 2016 95.2822036743164 2017 95.9879302978516 2018 96.2078628540039 2019 96.3352279663086 2020 96.3029479980469 2021 96.27880859375