CREATE TABLE table_51787 ("Tournament" TEXT, "Wins" FLOAT, "Top-5" FLOAT, "Top-10" FLOAT, "Top-25" FLOAT, "Events" FLOAT, "Cuts made" FLOAT)

What is the average top-25 value for majors that have more than 0 wins?
SELECT AVG("Top-25") FROM table_51787 WHERE "Wins" > '0'
SELECT AVG("Top-25") FROM "table_51787" WHERE "Wins" > '0'