user: Question: Which year did the school with enrollment of 413 join?
Columns: ['School (IHSAA ID#)', 'Location', 'Mascot', 'Enrollment', 'IHSAA Class', '# / County', 'Year Joined']
Types: ['text', 'text', 'text', 'real', 'text', 'text', 'real']
Sample row: ['Bremen', 'Bremen', 'Lions', 505.0, 'AA', '50 Marshall', 1989.0]
SQL:

assistant: SELECT "Year Joined" FROM "Table" WHERE "Enrollment" = 413.0;