user: ### NOW ANSWER:
Question: What year had an edition of 115th?
Columns: ['Year', 'Edition', 'Course', 'Location', 'Dates']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [2013.0, '113th', 'The Country Club', 'Brookline, Massachusetts', 'August 12–18']
SQL:

assistant: SELECT AVG("Year") FROM "Table" WHERE "Edition" = '115th';