IMHO, infoplease.com is not a refereed source of information. Just a thought.
How about the Mesocorticolimbic center of the brain?
There are wiring differences and men (whether it is comfy to know or not) happen to be more adept at math.
However that doesn’t really get to the core of the opening topic re the numbers of Ph.D.’s being awarded.
You were certainly free to provide a link to a more authoritative source for the SAT data, that showed different results. The Educational Testing Service does not appear to post historical SAT results, perhaps because the results are politically incorrect.
Here is another source (the highly unrefereed Wikipedia) that shows exactly the same thing over a 31 year period. Males slightly outscore females in the verbal portion of the SAT. Males substantially outscore females in the math portion of the SAT.