My guess is that the left number is the # that apply from OOS and the right number is the # that matriculate from OOS. Schools usually don't give out the number they accept, just the number that matriculate. You can usually assume that they accept 1.5-2 times the number that matriculate out of state. (This is just a guess based on the fact that most people will choose their in-state over an out-of-state acceptance. But I am the exception to that rule. 😉)