Year	% of enrollment
1999	30.52933
2000	30.69779
2001	30.38153
2002	31.83285
2003	29.53685
2004	29.95946
2005	28.93114
2006	27.57562
2007	21.95132
2008	25.96578
2009	25.96576
2012	25.96576