Just want to point out the the number of applicants & matriculants being discussed is only for MD programs. DOs are also physicians. There were 21,000+ osteopathic med school applicants and 7415 matriculants in the 2018-19 cycle.
Matriculation into foreign medical schools (Caribbean, Eastern Europe, Australia, etc.) is also often counted as a “med school admission” by many undergrads. There is no single place where the number of US students studying medicine abroad is is aggregated. However, St George’s University In Grenada alone seats 1800+ medical students–mostly from the US–every year.
Some colleges also include matriculation into dental schools, nurse practitioner programs, physician assistant programs, Clinical PsyD programs and PT schools in their count of “doctors”. (Because all those medical programs require a doctoral level degree for licensing and practice. And all these professions are required to get a health profession committee letter as part of their application process.)
The bottom line is any number or percentage for “med school admissions” announced by an undergraduate program is not reliable. There is no universal definition of “pre-med” and there is no universal definition of “medical school.”
A student who wishes to be go to medical school should choose a school based on costs, fit and opportunities, not on the purported percentage of students a college sends to medical school.