CREATE TABLE table_204_49 (id DECIMAL, "city" TEXT, "country" TEXT, "iata" TEXT, "icao" TEXT, "airport" TEXT, "commenced" DECIMAL, "ended" TEXT)

what are the number of times 2013 appears under the commenced column ?
SELECT COUNT(*) FROM table_204_49 WHERE "commenced" = 2013
SELECT COUNT(*) FROM "table_204_49" WHERE "commenced" = 2013