CREATE TABLE table_3166 ("Week" FLOAT, "Date" TEXT, "Kickoff" TEXT, "Opponent" TEXT, "Final score" TEXT, "Team record" TEXT, "Game site" TEXT, "Attendance" FLOAT)

How many weeks are teams playing agains the Barcelona dragons?
SELECT COUNT("Week") FROM table_3166 WHERE "Opponent" = 'Barcelona Dragons'
SELECT COUNT("Week") FROM "table_3166" WHERE "Opponent" = 'Barcelona Dragons'