Year	% of total enrollment
1972	6.3291
1973	6.10738
1974	5.60094
1976	5.57178
1977	5.64881
1978	5.69556
1979	3.6552
1980	4.60107
1981	3.94999
1983	3.74026
1984	3.15947
1985	2.934
1986	2.83752
2004	2.15427
2006	2.23606
2008	1.69197
2009	1.08055
2011	0.61055
2012	0.53513
2013	0.19517
2015	0.37433
2016	0.36957