Year	% of enrollment
1977	21.61364
1978	21.4625
1979	24.88809
1980	23.49818
1981	26.75758
1982	26.29253
1983	25.44628
1984	26.2968
1986	27.22602
1991	15.56777
1992	14.96908
1993	13.74532
1994	13.83724
2005	4.31192
2006	3.87536
2007	4.37875
2008	2.90526
2009	2.34328
2010	2.76603
2011	2.47675
2012	2.33668
2013	1.87218
2014	3.09898
2015	3.85425
2016	3.97569
2017	4.19843
2018	4.08391