Compare Wooster’s numbers to Allegheny, Ohio Wesleyan, Juniata, Muhlenberg, Beloit, Hobart, Wheaton MA, St Bonaventure, St Anselm, Siena, St Michael’s, Luther, Earlham, Augustana IL, Concordia Moorhead, Gustavus Adolphus, Millikin.
Then compare to St Olaf, St Lawrence, Butler, DePauw, Dickinson, Denison (for instance).
8 is very low indeed (I would have expected 15-20 for a school that size) but I doubt it’s because they weed out. Ask.
Wooster is known for its mandatory research component, attracting a higher proportion of students whose goal is grad school (PhD), it might be a factor.