CREATE TABLE table_16478 ("City of license/Market" TEXT, "Station" TEXT, "Channel TV  (  DT  ) " TEXT, "Year of affiliation" TEXT, "Owned since" TEXT)

The station located in Albuquerque has been owned since what year?
SELECT "Owned since" FROM table_16478 WHERE "City of license/Market" = 'Albuquerque'
SELECT "Owned since" FROM "table_16478" WHERE "City of license/Market" = 'Albuquerque'