Year	% of total enrollment
1971	22.88389
1972	23.07746
1976	21.11086
1977	20.80471
1978	20.29244
1980	18.82024
1981	18.82023
1982	18.82021
1983	18.82022
1984	18.82023
1988	20.76974
1991	17.63398
1992	11.91027
1993	8.97409
1994	20.96053
1999	15.53496
2002	16.30319
2007	15.92538
2008	15.33738
2009	15.33739
2010	14.118
2011	12.34413
2012	11.2093
2013	10.80886
2015	9.86886