[["company", "payments volume ( billions )", "total volume ( billions )", "total transactions ( billions )", "cards ( millions )"], ["visainc. ( 1 )", "$ 2793", "$ 4423", "62.2", "1808"], ["mastercard", "1852", "2454", "32.1", "966"], ["american express", "613", "620", "5.1", "88"], ["discover", "100", "109", "1.7", "54"], ["jcb", "75", "83", "0.8", "61"], ["diners club", "25", "26", "0.2", "7"]]