{"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 that operates in the united states .", "we have 32094 route miles , linking pacific coast and gulf coast ports with the midwest and eastern united states gateways and providing several corridors to key mexican gateways .", "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 revenues are analyzed 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 revenue by commodity group : millions of dollars 2009 2008 2007 ."], "post_text": ["although our revenues are principally derived from customers domiciled in the united states , the ultimate points of origination or destination for some products transported are outside the united states .", "basis of presentation 2013 the consolidated financial statements are presented in accordance with accounting principles generally accepted in the united states of america ( gaap ) as codified in the financial accounting standards board ( fasb ) accounting standards codification ( asc ) .", "subsequent events evaluation 2013 we evaluated the effects of all subsequent events through february 5 , 2010 , the date of this report , which is concurrent with the date we file this report with the u.s .", "securities and exchange commission ( sec ) .", "2 .", "significant accounting policies change in accounting principle 2013 we have historically accounted for rail grinding costs as a capital asset .", "beginning in the first quarter of 2010 , we will change our accounting policy for rail grinding costs ."], "table": [["millions of dollars", "2009", "2008", "2007"], ["agricultural", "$ 2666", "$ 3174", "$ 2605"], ["automotive", "854", "1344", "1458"], ["chemicals", "2102", "2494", "2287"], ["energy", "3118", "3810", "3134"], ["industrial products", "2147", "3273", "3077"], ["intermodal", "2486", "3023", "2925"], ["total freight revenues", "$ 13373", "$ 17118", "$ 15486"], ["other revenues", "770", "852", "797"], ["total operating revenues", "$ 14143", "$ 17970", "$ 16283"]], "table_ori": [["<i>Millions of Dollars</i>", "<i>2009</i>", "<i>2008</i>", "<i>2007</i>"], ["Agricultural", "$2,666", "$3,174", "$2,605"], ["Automotive", "854", "1,344", "1,458"], ["Chemicals", "2,102", "2,494", "2,287"], ["Energy", "3,118", "3,810", "3,134"], ["Industrial Products", "2,147", "3,273", "3,077"], ["Intermodal", "2,486", "3,023", "2,925"], ["Total freight revenues", "$13,373", "$17,118", "$15,486"], ["Other revenues", "770", "852", "797"], ["Total operating revenues", "$14,143", "$17,970", "$16,283"]]}

Question: what percent of total freight revenues was the chemicals group in 2009?
Evidence:
table_3: millions of dollars the chemicals of 2009 is 2102 ; the chemicals of 2008 is 2494 ; the chemicals of 2007 is 2287 ;
table_7: millions of dollars the total freight revenues of 2009 is $ 13373 ; the total freight revenues of 2008 is $ 17118 ; the total freight revenues of 2007 is $ 15486 ;
Program: divide(2102, 13373)
Answer:
str_answer: 16%
exe_answer: 0.15718