Year	% of enrollment
1971	25.11909
1972	25.65821
1973	23.82578
1974	33.3854
1975	24.56898
1976	23.96954
1977	23.59057
1978	22.82396
1979	22.78072
1980	22.75855
1988	24.0465
1990	22.43959
1991	22.43957
2009	14.1133
2011	11.51936
2012	11.51938
2014	9.98439
2015	9.85895
2016	14.14693
2017	12.00229