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Aggregating over the past four years of data (2017-2020), 42% of graduates with a second major in philosophy were women, compared to 36% of graduates whose only or primary major was philosophy.
At his blog, The Splintered Mind, Professor Schwitzgebel writes:
In 2020, 39% of undegraduates leaving colleges with degrees in philosophy were women, up from 35% in 2017, reports Eric Schwitzgebel (UC Riverside).
He notes that the trend is especially pronounced among those with philosophy as a second major:
from “The Philosophy Major Is Back, Now with More Women” by Eric Schwitzgebel