From 1973 to 2013, the percentage of women with PhDs in STEM increased from 14% to 41% (NSF). However, the convergence in persistence rates for men and women doesn't come from the increase of women getting their PhDs. It comes from the decrease in men pursuing doctorates. According from the href="http://ec.europa.eu/research/science-society/document_library/pdf_06/she-figures-2012_en.pdf" target="_blank">numbers href="http://ec.europa.eu/research/science-society/document_library/pdf_06/she-figures-2012_en.pdf">numbers  disclosed by the EU, in 2010 59% of the undergraduate degrees went to women. Women make 46% of PhD graduates while 44% university entry-level jobs are held by women. This number decreases with each step forward: only 37% of more senior university positions go to women. They drop out in the race to tenure - only 20% professors are female.