. transactions are estimates . diners club figures are for the 12 months ended november 30 , 2009 . discover data sourced from the nilson report issue 942 ( february 2010 ) 2014u.s . data only and includes business from third party issuers . for more information on the concentration of our operating revenues and other financial information , see note 15 2014enterprise-wide disclosures and concentration of business to our consolidated financial statements included in item 8 of this report