Year	% of total enrollment
1999	7.70668
2000	7.58933
2001	8.29801
2002	7.92683
2003	8.96231
2004	8.52234
2005	9.30732
2006	8.77852
2007	8.42838
2008	7.44107
2009	6.95897
2010	7.4059
2013	8.13016
2014	7.34515