This year it will be around 250 +/- 75. We do not over-accept. We will accept 32 initially. If one of those 32 declines, we will accept another. Thus we will maintain 32 active acceptances at all times by the end of the interview season. So - in theory - if nobody declines it will be exactly 32. It will probably be in the high 40s. But now you are asking me to predict how 32 people will act. Which, of course, is impossible.
Source: Me.
I hesitate giving this information. Not that I want to hide it from you. But because I know what premeds do with this information. What they do is try and "predict" the "probability of acceptance" based on this past data. You cannot us this information to "predict" your own success if interviewed. I wrote about this logical fallacy in the past here:
http://forums.studentdoctor.net/showpost.php?p=11381114&postcount=87