The University of Michigan maintained its ranking as the 15th top university in the world for the fourth year in a row, according to the Times Higher Education World Reputation Rankings.

The 2020 World Reputation Rankings, released Nov. 3, are based on the results from an invitation-only survey of more than 11,000 academics. Institutions are ranked according to their data on their reputation for research and teaching.

U-M is one of three U.S. public institutions in the top 20. The others are the University of California, Berkeley (6) and the University of California, Los Angeles (9).

The invitation-only survey was distributed in 14 languages this year.

This Times Higher Education ranking is one of two released annually by the organization. The more comprehensive World University Rankings were released in September.

That annual list ranks more than 1,500 universities and is based on 13 performance indicators separated into five categories: teaching, research, citations, industry income and international outlook. U-M ranked No. 22 on that list.