CREATE TABLE table_72985 ("Game" FLOAT, "Date" TEXT, "Opponent" TEXT, "Result" TEXT, "Raiders points" FLOAT, "Opponents" FLOAT, "Raiders first downs" FLOAT, "Record" TEXT, "Attendance" FLOAT)

How many different counts of the Raiders first downs are there for the game number 9?
SELECT COUNT("Raiders first downs") FROM table_72985 WHERE "Game" = '9'
SELECT COUNT("Raiders first downs") FROM "table_72985" WHERE "Game" = '9'