Year	% of enrollment
1983	33.69147
1984	28.39234
1987	23.78013
1988	23.80216
1990	24.09949
1999	15.70112
2002	14.88534
2003	15.49733
2004	15.74671
2005	16.46974
2007	24.79218
2008	24.81893
2009	23.82432
2010	21.80209
2014	14.90447
2015	16.42106
2017	12.79458