Task: Table-QA (source dataset: FinQA)

Task: 
You are given a table containing structured data and a natural language question referring to the table. Your goal is to analyze the table and provide an accurate and concise answer based on the given data.

Instructions:
1. Understand the Table: Examine the structure, headers, and data in the table. Identify relevant columns and rows related to the question.
2. Interpret the Question: Determine whether the question requires direct retrieval, aggregation, comparison, sorting, filtering, or inference.
3. Extract the Answer: Use logical reasoning and numerical operations (if necessary) to derive the correct response from the table.
4. Format the Answer: No explanation, return the answer in a structured JSON format: {"answer": <answer>}. If the question cannot be answered due to missing or ambiguous data, return a JSON response with {"answer": null}.

Table:
| ( thousands of barrels per day )   |   2008 |   2007 |   2006 |
|:-----------------------------------|-------:|-------:|-------:|
| crude oil trunk lines              |   1405 |   1451 |   1437 |
| refined products trunk lines       |    960 |   1049 |   1101 |
| total                              |   2365 |   2500 |   2538 |

Question:
what was total miles of private crude oil pipelines and private refined products pipelines?


pre_text: approximately 710 asphalt-paving contractors , government entities ( states , counties , cities and townships ) and asphalt roofing shingle manufacturers .
we also produce asphalt cements , polymerized asphalt , asphalt emulsions and industrial asphalts .
retail marketing ssa , our wholly-owned subsidiary , sells gasoline and merchandise through owned and operated retail outlets primarily under the speedway ae and superamerica ae brands .
diesel fuel is also sold at a number of these outlets .
ssa retail outlets offer a wide variety of merchandise , such as prepared foods , beverages , and non-food items , as well as a significant number of proprietary items .
as of december 31 , 2008 , ssa had 1617 retail outlets in nine states .
sales of refined products through these retail outlets accounted for 15 percent of our refined product sales volumes in 2008 .
revenues from sales of non-petroleum merchandise through these retail outlets totaled $ 2838 million in 2008 , $ 2796 million in 2007 and $ 2706 million in 2006 .
the demand for gasoline is seasonal in a majority of ssa markets , usually with the highest demand during the summer driving season .
profit levels from the sale of merchandise and services tend to be less volatile than profit levels from the retail sale of gasoline and diesel fuel .
in october 2008 , we sold our interest in pilot travel centers llc ( 201cptc 201d ) , an operator of travel centers in the united states .
pipeline transportation we own a system of pipelines through marathon pipe line llc ( 201cmpl 201d ) and ohio river pipe line llc ( 201corpl 201d ) , our wholly-owned subsidiaries .
our pipeline systems transport crude oil and refined products primarily in the midwest and gulf coast regions to our refineries , our terminals and other pipeline systems .
our mpl and orpl wholly-owned and undivided interest common carrier systems consist of 1815 miles of crude oil lines and 1826 miles of refined product lines comprising 34 systems located in 11 states .
the mpl common carrier pipeline network is one of the largest petroleum pipeline systems in the united states , based on total barrels delivered .
our common carrier pipeline systems are subject to state and federal energy regulatory commission regulations and guidelines , including published tariffs for the transportation of crude oil and refined products .
third parties generated 11 percent of the crude oil and refined product shipments on our mpl and orpl common carrier pipelines in 2008 .
our mpl and orpl common carrier pipelines transported the volumes shown in the following table for each of the last three years .
pipeline barrels handled ( thousands of barrels per day ) 2008 2007 2006 .
post_text: we also own 176 miles of private crude oil pipelines and 850 miles of private refined products pipelines , and we lease 217 miles of common carrier refined product pipelines .
we have partial ownership interests in several pipeline companies that have approximately 780 miles of crude oil pipelines and 3000 miles of refined products pipelines , including about 800 miles operated by mpl .
in addition , mpl operates most of our private pipelines and 985 miles of crude oil and 160 miles of natural gas pipelines owned by our e&p segment .
our major refined product lines include the cardinal products pipeline and the wabash pipeline .
the cardinal products pipeline delivers refined products from kenova , west virginia , to columbus , ohio .
the wabash pipeline system delivers product from robinson , illinois , to various terminals in the area of chicago , illinois .
other significant refined product pipelines owned and operated by mpl extend from : robinson , illinois , to louisville , kentucky ; garyville , louisiana , to zachary , louisiana ; and texas city , texas , to pasadena , texas. .
label: 1026
qa: answer: 1026
steps: op: add1-1
arg1: 176
arg2: 850
res: 1026
program: add(176, 850)
gold_inds: text_19: we also own 176 miles of private crude oil pipelines and 850 miles of private refined products pipelines , and we lease 217 miles of common carrier refined product pipelines .
exe_ans: 1026
tfidftopn: text_21: in addition , mpl operates most of our private pipelines and 985 miles of crude oil and 160 miles of natural gas pipelines owned by our e&p segment .
text_20: we have partial ownership interests in several pipeline companies that have approximately 780 miles of crude oil pipelines and 3000 miles of refined products pipelines , including about 800 miles operated by mpl .
program_re: add(176, 850)
model_input: table_3
( thousands of barrels per day ) the total of 2008 is 2365 ; the total of 2007 is 2500 ; the total of 2006 is 2538 ;
text_19
we also own 176 miles of private crude oil pipelines and 850 miles of private refined products pipelines , and we lease 217 miles of common carrier refined product pipelines .
text_20
we have partial ownership interests in several pipeline companies that have approximately 780 miles of crude oil pipelines and 3000 miles of refined products pipelines , including about 800 miles operated by mpl .