Year	% of total enrollment
1971	16.14698
1972	17.43911
1973	17.5428
1974	17.44234
1975	17.03115
1976	17.45185
1977	18.52482
1978	18.75735
1979	17.9562
1980	17.9144
1981	17.09021
1982	16.42446
1983	16.57038
1984	16.51128
1985	14.08236
1987	15.50892
1988	16.51125
1989	16.95111
1990	17.30648
1991	17.74871
1992	16.70865
1993	16.63681
1994	15.99481
1995	16.25605
1996	15.95489
1999	17.71132
2000	17.03283
2001	17.6083
2002	17.5254
2003	15.08956
2004	13.03909
2005	11.92663
2006	11.97501
2007	11.75001
2008	10.51572
2009	10.56267
2010	10.12248
2012	8.18048
2013	7.37977
2014	6.87415
2015	5.5887
2016	5.65723
2017	6.35369
2018	5.70354