CREATE TABLE table_204_49 (id NUMBER, "city" CLOB, "country" CLOB, "iata" CLOB, "icao" CLOB, "airport" CLOB, "commenced" NUMBER, "ended" CLOB)

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