user: Question: What's the minimal enrollment of any of the schools?
Columns: ['Institution', 'Nickname', 'Location', 'Founded', 'Type', 'Enrollment', 'Joined', 'Left', 'Current Conference']
Types: ['text', 'text', 'text', 'real', 'text', 'real', 'real', 'real', 'text']
Sample row: ['Adelphi University', 'Panthers', 'Garden City, New York', 1896.0, 'Private', 7859.0, 1989.0, 2009.0, 'Northeast-10 (NE-10)']
SQL:

assistant: SELECT MIN("Enrollment") FROM "Table";