Interesting chart via The Browser (a must subscribe) plotting each issue of the New York Review of Books (NYRB) by the gender mix of authors.
“What you are seeing is that there are only twelve issues out of 1228 (1%) to which women have contributed half or more of the articles. Nine of them have appeared within the past three years. Meanwhile there are about 196 issues (16%) to which not a single woman contributed an article.”