Year	% of total enrollment
1971	28.99367
1972	28.64517
1973	31.22779
1975	24.37774
1988	33.23807
1989	34.57711
1990	34.67317
1991	35.69775
1992	33.57609
1993	32.78886
1994	32.37671
1995	31.77613
1996	33.80005
1998	32.57934
1999	29.9129
2000	27.9367
2001	30.11146
2002	30.47772
2003	29.31724
2004	29.96412
2005	18.27496
2006	19.72824
2007	19.14061
2008	19.65773
2009	20.44623
2010	19.91312
2011	19.43031
2012	20.51708
2013	22.07021
2014	20.92739
2015	20.97355
2016	21.35468
2018	26.0745