Year	% of total enrollment
1970	22.20502
1972	18.42804
1974	17.29871
1975	15.41022
1976	13.22504
1977	11.94375
1978	9.07522
1979	11.94626
1980	10.43158
1981	10.7899
1982	10.43136
1983	10.22384
1984	9.35025
1985	8.20973
1986	7.89104
1987	8.85799
1989	7.16711
1990	8.043
1991	7.71114
1992	7.05637
1998	5.13315
2001	1.4061
2003	0.81031
2005	0.80452
2006	0.94933
2007	0.80821
2008	0.82406
2009	0.87424
2010	0.73198
2011	0.70741
2012	0.80245
2013	0.79142
2014	0.88648
2015	0.9305
2016	0.85275
2017	0.99391