There is a breakdown by country of citizenship and country of medical education in the 2014 edition: [Charting the Outcomes for International Medical Graduates 2014](https://www.ecfmg.org/resources/NRMP-ECFMG-Charting-Outcomes-in-the-Match-International-Medical-Graduates-2014.pdf)
Mexico data on pp. 21-22, p. 87.