Year	% of enrollment
1970	9.27763
1974	8.4379
1975	8.61836
1987	10.32002
1991	10.33689
1997	5.57432
1998	7.3387
1999	10.11659
2000	10.19093
2001	10.37059
2002	10.82
2003	11.15322
2004	11.52822
2005	11.49189
2006	11.88405
2007	12.19147
2008	12.25832
2009	12.17224
2010	11.71784
2011	10.91888
2012	10.1458
2013	9.08002
2014	8.44527
2015	8.02634
2016	7.31761
2017	6.43589