Year	% of total enrollment
1971	21.85323
1973	21.99282
1974	25.43638
1975	24.51474
1976	25.5955
1977	23.95955
1978	25.9284
1979	27.15767
1980	28.64978
1981	30.19914
1982	28.81526
1983	18.21286
1984	14.13379
1985	15.47575
1986	17.74284
1987	17.96235
1988	18.46435
1989	24.68273
1990	22.20746
1991	21.76269
1992	23.01379
1993	23.69027
2000	25.22698
2001	24.51635
2002	26.33476
2003	26.48764
2004	29.07491
2005	30.40693
2006	28.83548
2007	31.95767
2008	33.75358
2009	32.31314
2010	33.69318
2011	36.22002
2012	33.06936
2013	28.98482
2014	24.25129
2015	22.60202
2016	22.03026
2017	23.89185
2018	25.72155