Year % of female enrollment 1970 13.29202 1971 13.0022 1972 12.7728 1973 12.83137 1974 12.54349 1975 12.20136 1976 12.21006 1977 11.84564 1978 10.78606 1979 10.90361 1980 11.32518 1981 11.28224 1982 11.47363 1983 11.57263 1984 11.38095 1985 11.37625 1986 11.90634 1987 12.30863 1988 12.6489 1989 12.36866 1990 11.93208 1991 11.69169 1992 10.77821 1993 10.65739 1994 11.25366 1995 11.23263 1996 10.97538 1997 10.74193 1998 10.63293 1999 10.40431 2000 10.15407 2001 10.27138 2002 10.36644 2003 10.47663 2004 10.59289 2005 9.72767 2006 9.5174 2007 9.64213 2008 9.21689 2009 9.42181 2010 8.95404 2011 8.57124 2012 8.6872 2013 8.54673 2014 8.13284 2015 7.93957 2016 7.86613 2017 7.81218 2018 7.77841