Year	% of enrollment
1971	30.92845
1972	28.163
1973	26.05013
1974	25.31928
1975	25.55656
1976	25.83885
1977	25.49393
1978	11.56858
1979	15.25856
1980	16.278
1981	13.69686
1982	13.44817
1983	12.87737
1984	11.23383
1985	10.38472
1986	9.21578
1987	9.57149
1988	9.79863
1992	12.00966
1994	7.30324
1996	6.90985
1997	5.08494
1998	4.98356
1999	5.49928
2000	5.49928
2001	5.83656
2002	5.71037
2003	6.19385
2004	6.46676
2005	4.99689
2007	3.50276
2008	2.50374
2010	1.73207
2011	1.70371
2012	1.48471
2013	1.3719
2014	1.82354
2015	2.96648
2016	2.75983
2017	2.94842
2018	2.58255