I admit this is better. But how many of those who 'plan' on going into primary care after med school actually do so? What are the attrition rates in residency? Those who get married and then stop working? And after all, just because you do an IM residency doesn't mean you will necessary do primary care!! (Cards? GI? Onc? etc)
#1 These are not matriculants, these are people who are on their way OUT of medical school.