And Chicago:
In our admissions process, we must be “need-sensitive” for international candidates. This means that when reviewing international applications, UChicago takes into account whether or not an applicant has requested financial assistance. Though we will meet every admitted student’s demonstrated need, we advise you to apply for financial aid only if you do not have the resources to fund your education, and to complete the financial aid form as accurately as possible.
https://collegeadmissions.uchicago.edu/costs/international-aid
don't really have the time to research the other 13 of the "top 20," however you are defining that