user: Question: What's the highest Year Left for the School of Danville?
Columns: ['School', 'Location', 'Mascot', 'County', 'Year Joined', 'Year Left', 'Conference Joined']
Types: ['text', 'text', 'text', 'text', 'real', 'real', 'text']
Sample row: ['Avon', 'Avon', 'Orioles', '32 Hendricks', 1974.0, 2000.0, 'Hoosier Crossroads']
SQL:

assistant: SELECT MAX("Year Left") FROM "Table" WHERE "School" = 'Danville';