CREATE TABLE table_30131 ("Round" FLOAT, "Date" TEXT, "Grand Prix" TEXT, "Circuit" TEXT, "MotoGP winner" TEXT, "Moto2 winner" TEXT, "Moto3 winner" TEXT, "Report" TEXT)

Name the number of rounds for brno
SELECT COUNT("Round") FROM table_30131 WHERE "Circuit" = 'Brno'
SELECT COUNT("Round") FROM "table_30131" WHERE "Circuit" = 'Brno'