Year	% of enrollment
1971	24.15623
1975	18.96078
1978	21.36599
1979	20.04633
1980	19.30144
1981	17.9892
1982	16.91332
1983	16.99708
1984	16.07555
1985	16.45389
1986	16.56064
1987	17.83722
1988	17.62711
1989	15.78347
1990	16.93772
1991	16.40199
1992	15.9436
1993	14.90944
1994	15.6455
1995	15.19964
1996	14.94155
1997	14.61146
1999	15.79239
2000	15.2694
2001	13.74696
2002	11.32045
2003	11.04998
2004	10.72482
2005	10.50122
2006	10.05056
2007	7.85454
2008	6.79814
2009	6.06598
2010	5.98946
2011	5.32418
2012	4.82023
2013	4.78966
2014	4.70924
2015	4.44746
2016	4.35069
2017	4.76621
2018	5.24458