Note: Figures are based on data from all Title IV-participating, degree-granting institutions in the United States that fell into the categories above. The data cover full-time, nonmedical instructional staff (who were engaged either primarily in instruction or in instruction combined with research and/or public service, and who were on nine-, 10-, 11-, or 12-month contracts) as of November 1, 2019. The salaries are adjusted to a standard nine-month work year. Institutions with fewer than four full professors are excluded. Categories are based on the 2018 Carnegie Classifications of Institutions of Higher Education. See The Chronicle's complete database of faculty salaries at https://data.chronicle.com.