user: ### NOW ANSWER:
Question: For the engine family MaxxForce 11, what is the years produced?
Columns: ['Engine Family', 'Cylinder Layout', 'Displacement(s)', 'Injection type', 'Years produced']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['MaxxForce 5', 'V6', '275 cubic inches (4.5L)', 'Direct Injection', '2007-current']
SQL:

assistant: SELECT "Years produced" FROM "Table" WHERE "Engine Family" = 'MaxxForce 11';