Year	% of enrollment
1972	20.48142
1973	21.28657
1974	22.15895
1975	23.23391
1976	22.45072
1977	18.18672
1978	18.98162
1979	16.52648
1980	14.36105
1982	12.85437
1983	9.03163
1984	8.32404
1985	8.20459
1986	13.5262
1987	11.54652
1988	9.83694
1989	9.74414
1990	13.06267
1991	16.40872
1993	11.81746
1998	7.34071
1999	7.99991
2000	8.76535
2001	8.57739
2002	6.97188
2003	6.82477
2004	7.49846
2005	6.9803
2006	6.63003
2007	5.92658
2008	6.32488
2009	6.03195
2010	6.0452
2011	5.93101
2012	9.06595
2013	5.81134
2014	5.4691
2015	5.42048
2016	5.33299
2017	4.30481
2018	2.8268