Year	% of total enrollment
1972	10.18944
1973	15.64066
1974	20.11966
1975	19.93338
1976	18.87546
1986	12.47422
1987	13.8635
1988	15.93052
1989	10.3409
1990	10.72407
1991	13.43279
1992	13.67778
1993	13.9658
1994	13.46766
1995	12.44861
1996	14.71165
1997	16.06136
1999	16.56543
2000	14.12636
2001	14.43197
2002	11.33323
2005	9.2318
2006	7.45186
2007	9.08642
2008	10.57009
2011	9.63405
2012	9.08005
2014	9.06575
2015	8.62726
2016	8.29407
2017	10.12677
2018	8.66638