user: Question: What average year contains the title of Machineries Of Joy Vol. 4?
Columns: ['Title', 'Details', 'Track Title', 'Label', 'Year']
Types: ['text', 'text', 'text', 'text', 'real']
Sample row: ['Machineries of Joy Vol. 3', '2xCD, Limited', 'Forever', 'Out of Line', 2004.0]
SQL:

assistant: SELECT AVG("Year") FROM "Table" WHERE "Title" = 'Machineries Of Joy Vol. 4';