Year	% of enrollment
1970	21.75851
1971	20.44823
1972	17.5308
1973	24.3239
1974	21.26293
1975	18.12147
1976	15.56279
1977	14.72139
1978	15.37547
1979	16.56603
1980	16.29187
1981	8.18497
1982	0
1983	10.4181
1984	12.02687
1985	12.38149
1986	12.81592
1987	13.5297
1988	13.93599
1989	14.56268
1990	14.26516
1991	14.74372
1992	13.90995
1993	13.68703
1994	13.74626
1995	24.44364
1996	24.63743
1998	23.337
1999	22.67773
2000	22.00763
2001	21.54615
2002	21.50861
2003	21.29089
2004	20.10484
2005	20.4714
2006	20.1161
2007	20.03956
2008	20.06369
2009	19.79896
2012	14.38972
2013	14.71013
2014	13.34693