Year % of total enrollment 1971 4.39292 1972 1.87424 1973 1.48544 1983 1.13865 1984 0.41209 1985 0.20833 1986 0.28349 1987 0.2201 1988 0.69876 1989 0.63191 1990 0.326 1991 0.24752 1992 0.16667 1993 0.33613 1994 0.42882 1996 0.08818 1997 0.08547 2000 0 2004 0 2008 0 2009 0 2010 0 2011 0 2012 0 2018 0