CREATE TABLE table_32864 ("Club" TEXT, "Played" FLOAT, "Lost" FLOAT, "Drawn" FLOAT, "Against" FLOAT, "Diff." FLOAT, "Points" FLOAT)

What is the average diff when games played are more than 6?
SELECT AVG("Diff.") FROM table_32864 WHERE "Played" > '6'
SELECT AVG("Diff.") FROM "table_32864" WHERE "Played" > '6'