[["millions", "2016", "2015", "2014"], ["agricultural products", "$ 3625", "$ 3581", "$ 3777"], ["automotive", "2000", "2154", "2103"], ["chemicals", "3474", "3543", "3664"], ["coal", "2440", "3237", "4127"], ["industrial products", "3348", "3808", "4400"], ["intermodal", "3714", "4074", "4489"], ["total freight revenues", "$ 18601", "$ 20397", "$ 22560"], ["other revenues", "1340", "1416", "1428"], ["total operating revenues", "$ 19941", "$ 21813", "$ 23988"]]