Year	% of enrollment
1973	28.45848
1974	27.21167
1975	23.34066
1976	26.50565
1978	21.91771
1979	19.77322
1981	15.92252
1982	15.51989
1983	16.57445
1984	13.29087
1985	15.85567
1986	11.6773
1987	12.73624
1988	15.31827
1989	15.9815
1990	15.6599
1991	16.06987
1992	15.49447
1993	13.11092
1994	10.89402
1995	9.98182
1996	9.58867
1997	9.81039
1998	9.89104
1999	9.36725
2000	9.12031
2001	8.37612
2002	7.78125
2003	7.41664
2009	2.87117
2011	4.12713
2012	4.87025
2013	5.50255
2014	2.4926
2015	2.94514
2016	2.29776
2017	1.85182
2018	0.66835