Year % of enrollment 2001 5.80681 2002 4.83923 2003 3.07687 2004 0 2005 2.38338 2006 2.39663 2007 2.17579 2008 1.92046 2009 1.60834 2010 1.55979 2011 1.48403 2012 1.49537 2013 1.18156 2014 1.15523 2015 1.57184 2016 0.90781 2017 0.93695 2018 0.9473