School (primary). Currently published by the school on its own site at extraction time. The most authoritative source.
Secondary reporting. Published by a credible third-party outlet (Poets & Quants, Clear Admit, GMAT Club, news publications) that itself sourced the data from the school's release at the time. Used when a school doesn't archive its own historical data and the Wayback Machine doesn't have the relevant page either. Trust is one transcription removed from the school.
Verified, non-CSEA. Extracted and double-checked, but the source report did not follow CSEA (MBA Career Services and Employer Alliance) standards.