Year	% of enrollment
1971	16.93049
1973	18.13643
1974	19.84065
1975	20.21795
1976	21.07318
1977	20.0692
1978	19.44555
1979	20.41816
1980	20.77961
1994	14.03596
1995	13.26239
1996	12.45713
1997	12.50691
1998	12.09908
1999	12.09908
2000	11.7311
2001	11.04621
2002	10.44423
2003	10.26177
2005	10.07407
2006	9.63124
2007	9.35813
2008	9.67323
2009	6.51668
2010	5.98724
2011	6.10125
2012	6.48752
2013	6.31878
2014	6.68525
2015	4.91799
2016	4.15972
2017	3.27094
2018	3.04679