user: ### NOW ANSWER:
Question: What is the release date by Virgin?
Columns: ['Country', 'Release Date', 'Music Label', 'Media', 'Catalogue Number']
Types: ['text', 'real', 'text', 'text', 'text']
Sample row: ['Netherlands', 1983.0, 'Editions EG', 'LP', '813,535-1']
SQL:

assistant: SELECT AVG("Release Date") FROM "Table" WHERE "Music Label" = 'Virgin';