If you just want some calculations, look at La Griffe: http://www.lagriffedulion.f2s.com/women_and_minorities_in_science.htm and http://www.lagriffedulion.f2s.com/math.htm / http://www.lagriffedulion.f2s.com/math2.htm
(I haven't checked his numbers or looked for more mainstream authors, but then again, would you expect to find many papers by prominent authors doing the exact calculation you want, especially post-Sumners?)
the exact calculation you want
You say that as if I'm asking for something specific and unusual, but all I'm actually doing is responding to "If you do the calculations you find X" with "That's interesting; have you done those calculations or seen someone else do them, then?".
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