Current P&S student here, based on the fb group roughly 15 were accepted off the WL (this number could be biased by people just joining the FB group late). I think a few of these individuals did not accept their offer so the number of matriculants of the WL is actually <15. Supporting the statements above, I heard admin mention there was a very high yield this year, probably in-part due to the crazy cycle. Sorry if the WL wasn't in your favor this cycle but hope this helps alleviate any uncertainties (and apologies if this stresses any lurking applicants in future years lol)