Year	% of total enrollment
1971	9.22718
1972	10.72388
1973	9.77884
1974	10.12627
1976	8.35381
1977	7.28307
1978	7.76291
1979	6.49907
1980	8.0583
1981	3.38144
1982	3.62376
1983	3.2887
1984	3.50951
1987	6.08628
1992	5.92613
1993	4.56824
1995	4.08974
1996	4.10366
1997	4.0598
1999	3.07443
2000	2.33406
2001	1.61951
2003	1.4509
2005	0.92244
2006	1.24702
2007	1.43625
2008	0.73332
2009	0.86442
2010	0.5401