Year % of female enrollment 1970 23.25588 1971 23.71919 1972 23.56822 1973 22.29325 1974 22.69579 1975 20.68479 1976 19.91513 1977 19.22106 1978 18.76435 1979 18.23515 1981 17.14267 1982 18.47252 1983 18.70712 1984 18.83204 1985 17.60378 1986 18.16318 1987 17.50082 1988 17.72608 1989 17.42326 1990 16.70598 1991 16.6653 1992 16.5378 1993 18.21783 1994 17.80635 1995 17.86387 1996 18.5869 2009 28.23257 2010 26.43212 2011 26.06006 2012 26.08803 2013 27.51579 2014 26.20468 2015 26.20425 2016 25.0845 2017 25.26698