Year	% of total enrollment
1971	29.22805
1972	29.3481
1973	16.95301
1974	16.79257
1975	17.05497
1976	19.3341
1977	24.28121
1978	21.61874
1979	22.13109
1980	22.31613
1981	20.60327
1982	19.57685
1983	20.32488
1984	19.86387
1985	20.92114
1986	20.36206
1987	22.17873
1988	22.84361
1989	21.14062
1990	20.57022
1991	19.75947
1992	20.46332
1993	18.54361
1994	17.81798
1995	16.3173
1996	17.29975
1997	16.0662
1999	18.26303
2000	16.15453
2001	14.10834
2002	9.83664
2003	9.15502
2004	7.27938
2005	8.50713
2006	6.05211
2007	7.41059
2008	8.45843
2009	6.78293
2010	5.95452
2013	7.2111
2014	6.82369
2015	0.03112
2016	11.52009
2017	11.23848