I took a quick look at the common data sets for the top 25 National Universities and Liberal Arts Colleges. Of those 50 schools, I saw only 2 that offer ED plans, and include information about # of enrolled ED students:
Carnegie Mellon 311/326 (95.4%)
Washington & Lee 215/225 (95.5%)
While hardly statistically significant, and based on Cornell’s number above, I wonder if most schools in this range would come in at 95%+. The top schools do tend to be pretty good with Financial Aid, which would make it less likely that an applicant would pass on an ED acceptance. I’m curious to see where the 25-50 schools and 50-100 schools come in.