@bronze2 Updates:
According to an email sent to alumni interviewers Penn received over 7500 ED apps, not 7074.
Columbia received 4,085 apps, one less app than last year. http://www.columbiaspectator.com/news/2017/12/14/cc-seas-receive-one-less-early-decision-application-than-last-year-breaking-upward-trend/