CREATE TABLE table_37091 ("Weight Division" CLOB, "Winner" CLOB, "Loser" CLOB, "Method" CLOB, "Round" FLOAT, "Time" CLOB)

What is the average number of rounds for winner Rafael Cavalcante?
SELECT AVG("Round") FROM table_37091 WHERE "Winner" = 'rafael cavalcante'
SELECT AVG("Round") FROM "table_37091" WHERE "Winner" = 'rafael cavalcante'