Here's what I've inferred about the numbers:
46 accepted ED (per Sandy on my interview day), ~20-30 accepted so far through regular decision (based on "top 10% rule" Sandy described on interview day), probably another 10 or so for people who did post-bacc, and a few more for deferments.
So in total we have roughly ~80-90 already accepted. They overfill the class and accept 230, so that leaves about 140 spots. Another 50 will be put on the wait list as well based on previous years. Granted, this is all based on approximations and assumptions, so take this with a grain of salt.