Year	% of total enrollment
1973	25.1593
1974	26.10418
1975	22.86749
1976	20.8929
1977	19.13418
1978	17.79217
1979	18.41092
1980	18.98699
1981	19.64493
1983	24.51646
1984	25.81668
1985	28.66669
1986	28.34359
1987	27.1577
1988	25.84145
1989	26.33627
1990	26.34724
1991	24.06611
1992	27.04062
1993	26.64097
1994	25.4101
1995	26.69006
1996	23.50407
1997	24.64682
1998	25.42585
1999	23.65236
2000	24.18788
2001	22.96174
2002	23.33951
2003	17.59135
2006	23.52618
2007	21.59151
2009	18.79494
2011	16.58119
2012	19.64269
2013	20.21975
2014	15.00569
2015	15.21149
2016	12.66589
2017	11.04798