With more applicants, schools are either filling the class earlier with EA/ED or bringing the admit rate down, and in many cases they are doing both!
Harvard EA. https://www.thecrimson.com/article/2017/12/13/early-admissions-2022/
2022: Apps 6,630. Accepts 964 (14.5%)
2021: Apps 6,473. Accepts 938 (14.5%). Matriculates 1,687
Penn ED. http://www.thedp.com/article/2017/12/early-decision-upenn-ivy-league-philadelphia-admissions-rate
2022: Apps 7,074. Accepts 1,312 (18.5%)
2021: Apps 6,147. Accepts 1,354 (22.0%). Matriculates 2,457
Princeton EA. https://www.princeton.edu/news/2017/12/13/princeton-offers-early-action-admission-799-students-class-2022
2022: Apps 5,402. Accepts 799 (14.7%)
2021: Apps 5,003. Accepts 770 (18.3%). Matriculates 1,314
Brown ED. http://www.browndailyherald.com/2017/12/14/738-students-admitted-early-decision/
2022: Apps 3,502. Accepts 738 (21%)
2021: Apps 3,170. Accepts 695 (22%). Matriculates 1,729
Yale EA. https://news.yale.edu/2017/12/14/842-early-action-applicants-admitted-class-2022
2022: Apps 5,733. Accepts 842 (14.7%)
2021: Apps 5,086. Accepts 871 (17.1%). Matriculates 1,580
MIT EA. http://mitadmissions.org/blogs/entry/mit-early-action-decisions-now-available-online5
2022: Apps 9,557. Accepts 664 (6.9%)
2021: Apps 8,413. Accepts 657 (7.8%). Matriculates 1,102
Duke ED. http://www.dukechronicle.com/article/2017/12/171214-reports-early-decision
2022: Apps 4,090. Accepts 875 (21%)
2021: Apps 3,503. Accepts 864 (25%). Matriculates 1,751
Dartmouth ED
2022:
2021: Apps 1,999. Accepts 555 (27.8%). Matriculates 1,222
Cornell ED
2022:
2021: Apps 5,401. Accepts 1,393 (25.8%). Matriculates 3,375
Stanford EA.
2022: not released
2021: Apps 7,822. Accepts 721 (9.2%). Matriculates 1,708
Columbia ED
2022: Apps 4,085. Accepts ___ (%)
2021: Apps 4,086. Accepts (_%). Matriculates 1,456