What is a question about this article? If the question is unanswerable, say "unanswerable".

The city management and urban policy program was ranked first in the nation, and the special education program second, by U.S. News & World Report's 2016 rankings. USN&WR also ranked several programs in the top 25 among U.S. universities.

In what tier did a number of KU's programs rank in 2016?
the top 25