{"pre_text": ["the following table sets forth our refined products sales by product group and our average sales price for each of the last three years .", "refined product sales ( thousands of barrels per day ) 2008 2007 2006 ."], "post_text": ["total ( a ) 1352 1410 1425 average sales price ( dollars per barrel ) $ 109.49 $ 86.53 $ 77.76 ( a ) includes matching buy/sell volumes of 24 mbpd in 2006 .", "on april 1 , 2006 , we changed our accounting for matching buy/sell arrangements as a result of a new accounting standard .", "this change resulted in lower refined products sales volumes for 2008 , 2007 and the remainder of 2006 than would have been reported under our previous accounting practices .", "see note 2 to the consolidated financial statements .", "gasoline and distillates 2013 we sell gasoline , gasoline blendstocks and no .", "1 and no .", "2 fuel oils ( including kerosene , jet fuel , diesel fuel and home heating oil ) to wholesale marketing customers in the midwest , upper great plains , gulf coast and southeastern regions of the united states .", "we sold 47 percent of our gasoline volumes and 88 percent of our distillates volumes on a wholesale or spot market basis in 2008 .", "the demand for gasoline is seasonal in many of our markets , with demand typically being at its highest levels during the summer months .", "we have blended fuel ethanol into gasoline for over 15 years and began increasing our blending program in 2007 , in part due to federal regulations that require us to use specified volumes of renewable fuels .", "we blended 57 mbpd of ethanol into gasoline in 2008 , 41 mbpd in 2007 and 35 mbpd in 2006 .", "the future expansion or contraction of our ethanol blending program will be driven by the economics of the ethanol supply and by government regulations .", "we sell reformulated gasoline , which is also blended with ethanol , in parts of our marketing territory , including : chicago , illinois ; louisville , kentucky ; northern kentucky ; milwaukee , wisconsin and hartford , illinois .", "we also sell biodiesel-blended diesel in minnesota , illinois and kentucky .", "in 2007 , we acquired a 35 percent interest in an entity which owns and operates a 110-million-gallon-per-year ethanol production facility in clymers , indiana .", "we also own a 50 percent interest in an entity which owns a 110-million-gallon-per-year ethanol production facility in greenville , ohio .", "the greenville plant began production in february 2008 .", "both of these facilities are managed by a co-owner .", "propane 2013 we produce propane at all seven of our refineries .", "propane is primarily used for home heating and cooking , as a feedstock within the petrochemical industry , for grain drying and as a fuel for trucks and other vehicles .", "our propane sales are typically split evenly between the home heating market and industrial consumers .", "feedstocks and special products 2013 we are a producer and marketer of petrochemicals and specialty products .", "product availability varies by refinery and includes benzene , cumene , dilute naphthalene oil , molten maleic anhydride , molten sulfur , propylene , toluene and xylene .", "we market propylene , cumene and sulfur domestically to customers in the chemical industry .", "we sell maleic anhydride throughout the united states and canada .", "we also have the capacity to produce 1400 tons per day of anode grade coke at our robinson refinery , which is used to make carbon anodes for the aluminum smelting industry , and 2700 tons per day of fuel grade coke at the garyville refinery , which is used for power generation and in miscellaneous industrial applications .", "in september 2008 , we shut down our lubes facility in catlettsburg , kentucky , and sold from inventory through december 31 , 2008 ; therefore , base oils , aromatic extracts and slack wax are no longer being produced and marketed .", "in addition , we have recently discontinued production and sales of petroleum pitch and aliphatic solvents .", "heavy fuel oil 2013 we produce and market heavy oil , also known as fuel oil , residual fuel or slurry at all seven of our refineries .", "another product of crude oil , heavy oil is primarily used in the utility and ship bunkering ( fuel ) industries , though there are other more specialized uses of the product .", "we also sell heavy fuel oil at our terminals in wellsville , ohio , and chattanooga , tennessee .", "asphalt 2013 we have refinery based asphalt production capacity of up to 102 mbpd .", "we market asphalt through 33 owned or leased terminals throughout the midwest and southeast .", "we have a broad customer base , including ."], "table": [["( thousands of barrels per day )", "2008", "2007", "2006"], ["gasoline", "756", "791", "804"], ["distillates", "375", "377", "375"], ["propane", "22", "23", "23"], ["feedstocks and special products", "100", "103", "106"], ["heavy fuel oil", "23", "29", "26"], ["asphalt", "76", "87", "91"], ["total ( a )", "1352", "1410", "1425"], ["average sales price ( dollars per barrel )", "$ 109.49", "$ 86.53", "$ 77.76"]], "table_ori": [["<i>(Thousands of barrels per day)</i>", "2008", "2007", "2006"], ["Gasoline", "756", "791", "804"], ["Distillates", "375", "377", "375"], ["Propane", "22", "23", "23"], ["Feedstocks and special products", "100", "103", "106"], ["Heavy fuel oil", "23", "29", "26"], ["Asphalt", "76", "87", "91"], ["TOTAL<sup>(a)</sup>", "1,352", "1,410", "1,425"], ["Average sales price<i>(Dollars per barrel)</i>", "$109.49", "$86.53", "$77.76"]]}

Question: what was the increase of blended ethanol into gasoline in 2008 from 2007 , in mmboe?
Evidence:
text_12: we blended 57 mbpd of ethanol into gasoline in 2008 , 41 mbpd in 2007 and 35 mbpd in 2006 .
Program: subtract(57, 41)
Answer:
str_answer: 16
exe_answer: 16