Year	% of total enrollment
1972	7.68955
1973	8.47199
1974	9.13585
1975	8.2766
1976	7.52011
1977	8.89773
1978	9.8569
1979	15.30701
1980	12.5553
1981	13.16097
1982	13.79648
1983	9.00491
1984	10.22314
1986	8.56069
1991	9.73724
1992	9.64004
1993	10.16434
1994	8.86681
1995	7.84121
2004	2.57212
2005	2.25159
2006	1.60573
2007	2.0904
2008	0.81773
2009	0.54386
2010	0.13118
2011	0.14394
2012	0.07017
2013	0.06652
2014	0.19719
2015	0.15843
2016	0.63008
2017	0.27771
2018	0.08107