Year	% of enrollment
1971	19.89409
1972	24.99855
1978	26.3136
1979	28.44201
1980	30.29
1982	30.28504
1983	29.44332
1984	29.12658
1985	27.87285
1986	31.80392
1987	25.22421
1988	25.25684
1989	28.15883
1990	28.49174
1991	29.60638
1994	29.93398
1995	28.50026
1996	25.25036
1997	27.40101
1999	23.85809
2000	20.75889
2001	20.24213
2002	18.13543
2003	17.58358
2004	16.65438
2005	15.96467
2006	15.27524
2007	15.43524
2008	14.35598
2015	19.09142
2016	19.0915
2017	18.20625
2018	17.88988