Year % of female enrollment 1970 8.82412 1971 8.68971 1972 8.59985 1973 8.41638 1974 8.15904 1975 7.92617 1976 7.78764 1977 7.76767 1978 7.73885 1979 7.55333 1980 7.56224 1981 7.42258 1982 7.3157 1983 7.20556 1984 7.02237 1985 6.79823 1986 6.77772 1987 6.50573 1988 6.45628 1989 6.37396 1990 6.17386 1991 6.09042 1992 5.75608 1993 5.60369 1994 5.46324 1995 5.34964 1996 5.20148 1997 4.96696 1998 4.9323 1999 4.91648 2000 4.89794 2001 4.7961 2002 4.74816 2003 4.64547 2004 4.58405 2005 4.48866 2006 4.37077 2007 4.40377 2008 4.24736 2009 4.3808 2010 4.38962 2011 4.37289 2012 3.82481 2013 3.57722 2014 3.29112 2015 3.02441 2016 2.9264 2017 2.91912 2018 2.85942