Personally, I was waitlisted by 6 schools. After following this process, I was accepted by 4 out of the 5 schools that I stayed on the waitlist for. Good luck 
http://theodysseyonline.com/tufts/letter-of-encouragement-to-the-college-waitlisted/389819
@Emilyj16 Which schools did yo get off the waitlist for?
@Emilyj16 do you mind sharing where you were waitlisted & where you got off?
Historical data about the number of waitlisted applicants at various colleges and the number, if any, who get spots off the waitlist is easily researched, and often varies considerably from year to year anyway. The identity of the particular schools that offered spots to Emily off the waitlist is of no value to anyone.