Year % of enrollment 1971 5.69876 1972 5.02903 1976 0.76949 1977 0.74989 1978 0.71974 1979 0.60636 1980 90.08517 1981 0.79603 1982 0.81387 1984 0.23065 1985 0.28706 1986 0.25106 1987 0.25985 1988 0.28528 1989 0.25898 1990 0.22634 1991 0.21006 1992 0.18767 1993 0.16718 1994 0.17167 1995 0.14838 1996 0.16212 1997 0.16908 1998 0 1999 0 2000 0 2001 0 2002 0 2003 0 2004 0 2005 0 2006 0 2007 0 2008 0 2009 0 2010 0 2011 0 2012 0 2013 0 2014 0 2015 0 2016 0 2017 0