Year	% of enrollment
1999	1.50454
2000	2.09108
2001	1.5469
2002	1.74145
2003	3.12773
2004	0
2005	2.94181
2006	2.80424
2007	2.6313
2008	2.52405
2009	2.70889
2010	2.26996
2011	2.1534
2012	1.956
2013	1.6921
2014	1.63077
2015	1.45298
2016	1.39746
2017	1.00696
2018	1.11402