user: ### NOW ANSWER:
Question: Which Catalog has a Date of July 15, 2011?
Columns: ['Region', 'Date', 'Label', 'Format', 'Catalog']
Types: ['text', 'text', 'text', 'text', 'real']
Sample row: ['Europe', 'October 24, 2008', 'Columbia', 'CD', 88697400492.0]
SQL:

assistant: SELECT AVG("Catalog") FROM "Table" WHERE "Date" = 'July 15, 2011';