Year	% of total enrollment
1970	0.61795
1971	0.46173
1972	0.49633
1974	1.81555
1975	1.14347
1976	0.38191
1977	0.54995
1978	0.81004
1980	0
1981	0
1982	0
1983	0
1984	0
1985	0
1986	0
1987	0
1988	0
1989	0
1991	0
1992	0
1993	0
1994	0