CREATE TABLE table_35781 ("Rank" FLOAT, "Airport" CLOB, "Metropolitan area" CLOB, "Passengers" FLOAT, "Carriers" CLOB)

Which Passengers have Carriers of air canada?
SELECT "Passengers" FROM table_35781 WHERE "Carriers" = 'air canada'
SELECT "Passengers" FROM "table_35781" WHERE "Carriers" = 'air canada'