Year	% of total enrollment
1971	19.829
1972	19.2191
1973	17.61109
1978	14.92996
1979	15.34157
1980	16.05972
1981	15.56863
1982	15.66187
1983	15.72633
1984	15.23677
1985	15.95231
1986	16.31026
1988	14.83639
1989	15.88234
1990	16.1782
1992	16.08968
1994	15.02018
1996	13.95334
1997	13.41722
1998	13.34561
1999	14.36796
2000	13.61708
2001	13.91266
2002	13.64502
2003	13.77437
2004	12.94277
2005	11.85524
2006	10.63467
2007	10.63467
2008	7.68305
2009	7.49595
2010	6.25785
2011	2.99014
2012	3.42277
2013	2.79379
2014	2.87852
2015	2.72686
2016	3.70608
2017	1.40761
2018	3.58786