"Around 82 percent of students admitted to the Class of 2022 have accepted their offers of admission so far, though more students will be admitted from the waitlist in the coming months.
This year’s yield rate represents a slight decrease from last year’s rate. A record-high 84 percent of students had accepted their offers to the Class of 2021 around this time a year ago. The final yield rate for the Class of 2021—that is, the percentage of admitted students that actually joined the class—was 82.8 percent.
In total, 42,749 prospective students applied to the Class of 2022, and the College accepted 4.59 percent of those students—1,962 in total—during the early admission and regular decision rounds." …
https://www.thecrimson.com/article/2018/5/16/matriculation-rate-2022/