This might be helpful to you. http://admissions.miami.edu/undergraduate/application-process/class-profile/freshman-class-profile/index.html
And from what I can tell the numbers go up just a little each year. I also saw in the while on campus last week that the acceptance rate for Class of 2021 was 36% of applicants and that they took twice as many ED applicants this year (consistent with a similar rise in the number of ED applicants). Sorry, no link for these last two facts.