CREATE TABLE table_42583 ("Ship size" TEXT, "Cargo" TEXT, "2004" TEXT, "2005" TEXT, "2006" TEXT)

What was the cargo value in 2004 for ship size?
SELECT "2004" FROM table_42583 WHERE "Ship size" = 'ship size'
SELECT "2004" FROM "table_42583" WHERE "Ship size" = 'ship size'