Year % of total enrollment 1984 8.82067 1985 9.15722 1986 8.34329 1987 8.04163 1988 7.54361 1989 7.5889 1990 6.94222 1991 6.76081 1992 6.67001 1993 5.72416 1994 5.12841 1995 4.905 2004 2.92024 2005 2.54156 2006 2.53105 2007 2.22117 2008 2.12794 2009 1.75646 2010 1.69514 2011 2.35584 2012 2.26257 2013 2.06249 2014 1.84557 2015 1.76959 2016 2.04456 2017 2.37347