pre_text: notes to the consolidated financial statements union pacific corporation and subsidiary companies for purposes of this report , unless the context otherwise requires , all references herein to the 201ccorporation 201d , 201cupc 201d , 201cwe 201d , 201cus 201d , and 201cour 201d mean union pacific corporation and its subsidiaries , including union pacific railroad company , which will be separately referred to herein as 201cuprr 201d or the 201crailroad 201d . 1 . nature of operations operations and segmentation 2013 we are a class i railroad operating in the u.s . our network includes 31868 route miles , linking pacific coast and gulf coast ports with the midwest and eastern u.s . gateways and providing several corridors to key mexican gateways . we own 26020 miles and operate on the remainder pursuant to trackage rights or leases . we serve the western two-thirds of the country and maintain coordinated schedules with other rail carriers for the handling of freight to and from the atlantic coast , the pacific coast , the southeast , the southwest , canada , and mexico . export and import traffic is moved through gulf coast and pacific coast ports and across the mexican and canadian borders . the railroad , along with its subsidiaries and rail affiliates , is our one reportable operating segment . although we provide and review revenue by commodity group , we analyze the net financial results of the railroad as one segment due to the integrated nature of our rail network . the following table provides freight revenue by commodity group : millions 2012 2011 2010 .
post_text: although our revenues are principally derived from customers domiciled in the u.s. , the ultimate points of origination or destination for some products transported by us are outside the u.s . each of our commodity groups includes revenue from shipments to and from mexico . included in the above table are revenues from our mexico business which amounted to $ 1.9 billion in 2012 , $ 1.8 billion in 2011 , and $ 1.6 billion in 2010 . basis of presentation 2013 the consolidated financial statements are presented in accordance with accounting principles generally accepted in the u.s . ( gaap ) as codified in the financial accounting standards board ( fasb ) accounting standards codification ( asc ) . 2 . significant accounting policies principles of consolidation 2013 the consolidated financial statements include the accounts of union pacific corporation and all of its subsidiaries . investments in affiliated companies ( 20% ( 20 % ) to 50% ( 50 % ) owned ) are accounted for using the equity method of accounting . all intercompany transactions are eliminated . we currently have no less than majority-owned investments that require consolidation under variable interest entity requirements . cash and cash equivalents 2013 cash equivalents consist of investments with original maturities of three months or less . accounts receivable 2013 accounts receivable includes receivables reduced by an allowance for doubtful accounts . the allowance is based upon historical losses , credit worthiness of customers , and current economic conditions . receivables not expected to be collected in one year and the associated allowances are classified as other assets in our consolidated statements of financial position. .
table: <i>Millions</i> <i>2012</i> <i>2011</i> <i>2010</i>
table: Agricultural $3,280 $3,324 $3,018
table: Automotive 1,807 1,510 1,271
table: Chemicals 3,238 2,815 2,425
table: Coal 3,912 4,084 3,489
table: Industrial Products 3,494 3,166 2,639
table: Intermodal 3,955 3,609 3,227
table: Total freight revenues $19,686 $18,508 $16,069
table: Other revenues 1,240 1,049 896
table: Total operatingrevenues $20,926 $19,557 $16,965
question: Analyse this data from a financial earnings document. revenues from mexico are how much of total operating revenues in 2012?