CREATE TABLE table_28096 ("Round" FLOAT, "Circuit" TEXT, "Location" TEXT, "Date" TEXT, "Pole position" TEXT, "Fastest lap" TEXT, "Winning driver" TEXT, "Winning team" TEXT)

How many rounds were played on May 8?
SELECT COUNT("Round") FROM table_28096 WHERE "Date" = 'May 8'
SELECT COUNT("Round") FROM "table_28096" WHERE "Date" = 'May 8'