Year % of female enrollment 1970 13.76037 1971 13.06353 1972 13.73217 1973 13.17587 1974 12.59399 1975 11.66189 1976 11.8013 1977 11.88286 1978 12.33944 1979 11.29802 1980 12.81172 1981 12.57497 1982 12.6755 1983 12.37326 1984 12.17631 1985 12.04875 1986 12.21934 1987 11.48206 1988 11.55325 1989 11.41994 1990 11.30243 1991 11.23652 1992 10.87235 1993 11.04734 1994 11.06659 1995 11.79779 1996 11.80064 1997 11.36363 1998 11.62213 1999 11.66619 2000 11.72989 2001 10.51164 2002 10.22104 2003 9.57333 2004 9.53835 2005 9.03359 2006 8.14866 2007 7.20588 2008 6.37262 2009 5.83513 2010 5.3599 2011 5.11647 2012 5.07394 2013 4.6584 2014 4.10338 2015 3.96755 2016 3.8196 2017 4.04196 2018 3.98299