I think they told us it was something like a 31 or 32 at my freshman orientation two years ago but I’ve heard of people having as low as a 27 or 28 (and I’m sure there are even lower). It’s not the end all be all of you acceptance (there are some people with 27s who get in and flourish at Michigan and some people who get 33s and don’t get accepted at all) so I’d say it likely varies from year to year depending on the overall strengths and weaknesses of the current class. However if I had to guess I would say it probably holds steady between 30-33 every year.