Strange Horizons has just posted Niall Harrison's annual count of review publications in the sf/f field. This year's count looks at race as well as gender, which I'm glad to see. I'm not glad to see, however, that the statistics for 2013 reviews of work by women and women reviewers has remained pretty much flat in comparison with those for 2012. By this point, the gender disparity is becoming hard to explain without reference to internalized sexism.
Check out Niall's count here: http://www.strangehorizons.com/2014/20140428/2sfcount-a.shtml.