Meaningless. A healthy percentage of the top students at every school who could land any specialty match into IM every year. Why? Because it's not about what you can get, it's about what you want to do for the next 40 years. Premeds are so focused on getting into a top school and then getting into a competitive residency that they don't realize that in med school the game changes. It's no longer about what you can get, it becomes what you want, where you want to end up, what works with family and SO, etc. The analysis is simply foreign to most premeds. So you see a list and think, boy nobody got ortho in Boston, while the reality may really be a list where everybody wanted to become endocrinologists in Nebraska and they all got exactly what they wanted, ergo the best match list possible. This dichotomy (want vs could get) more or less renders match lists useless to you.
There are lots of schools where 60 people could have gotten ortho if they wanted it, but only 10 applied, and all matched. Does that really make the place worse for ortho than the place where 30 people wanted ortho but only 12 got it? Of course not. But if you looked at a match list, and only got the final tally, youd come to the entirely wrong conclusion.