Year	% of total enrollment
1976	14.78252
1977	13.44198
1978	14.50503
1979	13.73774
1980	18.27342
1981	14.00972
1983	17.18875
1985	17.7053
1986	18.33167
1987	19.78155
1988	19.08212
1989	19.5573
1990	19.33714
1991	17.95323
1992	17.48277
1993	16.0172
1994	16.44964
1995	16.12717
1996	15.74678
1997	15.76801
1998	15.57667
1999	15.75203
2001	15.22138
2002	14.08616
2005	10.10042
2006	10.18027
2007	3.40075
2009	2.64601
2010	3.4557
2012	3.70892
2013	3.34369
2014	3.48823
2015	3.11792
2017	2.39505
2018	1.69825