Yale CS 收入最高，这个数据对吗？

在网上Home | College Scorecard查到Yale CS Major 毕业5年后Medium Earnings $271,466。 CMU 是$251,632，MIT $220K, Stanford $247K, UIUC $170K。(The median annual earnings of students five years after graduation. Only data from students who received federal financial aid are included in the calculation.)

Yale CS 的收入最高。与其它数据不同。如何解释这个数据？

Yale University | College Scorecard