MODERATOR’S NOTE:
The OP can look here:
http://talk.collegeconfidential.com/prep-school-admissions/2128991-official-2019-prep-school-stats-ecs-thread.html#latest
S/he can also search for the similar thread from previous admissions cycles. Keep in mind that this is a very small subset of applicants, and that past performance is not indicative of future results. Closing.