user: ### NOW ANSWER:
Question: What is the average top-25 value for majors that have more than 0 wins?
Columns: ['Tournament', 'Wins', 'Top-5', 'Top-10', 'Top-25', 'Events', 'Cuts made']
Types: ['text', 'real', 'real', 'real', 'real', 'real', 'real']
Sample row: ['Masters Tournament', 0.0, 0.0, 0.0, 2.0, 7.0, 5.0]
SQL:

assistant: SELECT AVG("Top-25") FROM "Table" WHERE "Wins" > 0.0;