Year	% of enrollment
2001	18.38582
2002	17.39373
2003	16.72297
2004	16.11854
2005	15.53935
2006	15.1599
2007	15.21754
2008	15.00387
2009	14.76856
2010	13.63482
2011	13.52219
2012	13.02409
2013	12.7196
2014	12.50321
2015	12.17593
2016	11.88683
2017	11.82699