This order seems a bit strange. Why are Midd and CMC down below Washington and Lee, Smith, Vassar, Grinnell, and Wellesley?
HMC’s selectivity is hidden behind an acceptance rate which is also determined by having a smaller pool of stronger students who are interested in an engineering LAC. However, the rest of the colleges have more or less similar applicant pools, so their acceptance rates are a decent reflection of selectivity. So Smith is accepting 32%, Vassar is accepting 22%, and you put both as more selective than than CMC, which is accepting 10%, and Middlebury with 17%.