{"pre_text": ["future impairments would be recorded in income from continuing operations .", "the statement provides specific guidance for testing goodwill for impairment .", "the company had $ 3.2 billion of goodwill at december 31 , 2001 .", "goodwill amortization was $ 62 million for the year ended december 31 , 2001 .", "the company is currently assessing the impact of sfas no .", "142 on its financial position and results of operations .", "in june 2001 , the fasb issued sfas no .", "143 , 2018 2018accounting for asset retirement obligations , 2019 2019 which addresses financial accounting and reporting for obligations associated with the retirement of tangible long-lived assets and the associated asset retirement costs .", "this statement is effective for financial statements issued for fiscal years beginning after june 15 , 2002 .", "the statement requires recognition of legal obligations associated with the retirement of a long-lived asset , except for certain obligations of lessees .", "the company is currently assessing the impact of sfas no .", "143 on its financial position and results of operations .", "in december 2001 , the fasb revised its earlier conclusion , derivatives implementation group ( 2018 2018dig 2019 2019 ) issue c-15 , related to contracts involving the purchase or sale of electricity .", "contracts for the purchase or sale of electricity , both forward and option contracts , including capacity contracts , may qualify for the normal purchases and sales exemption and are not required to be accounted for as derivatives under sfas no .", "133 .", "in order for contracts to qualify for this exemption , they must meet certain criteria , which include the requirement for physical delivery of the electricity to be purchased or sold under the contract only in the normal course of business .", "additionally , contracts that have a price based on an underlying that is not clearly and closely related to the electricity being sold or purchased or that are denominated in a currency that is foreign to the buyer or seller are not considered normal purchases and normal sales and are required to be accounted for as derivatives under sfas no .", "133 .", "this revised conclusion is effective beginning april 1 , 2002 .", "the company is currently assessing the impact of revised dig issue c-15 on its financial condition and results of operations .", "2001 compared to 2000 revenues revenues increased $ 1.8 billion , or 24% ( 24 % ) to $ 9.3 billion in 2001 from $ 7.5 billion in 2000 .", "the increase in revenues is due to the acquisition of new businesses , new operations from greenfield projects and positive improvements from existing operations .", "excluding businesses acquired or that commenced commercial operations in 2001 or 2000 , revenues increased 5% ( 5 % ) to $ 7.1 billion in 2001 .", "the following table shows the revenue of each segment: ."], "post_text": ["contract generation revenues increased $ 800 million , or 47% ( 47 % ) to $ 2.5 billion in 2001 from $ 1.7 billion in 2000 , principally resulting from the addition of revenues attributable to businesses acquired during 2001 or 2000 .", "excluding businesses acquired or that commenced commercial operations in 2001 or 2000 , contract generation revenues increased 2% ( 2 % ) to $ 1.7 billion in 2001 .", "the increase in contract generation segment revenues was due primarily to increases in south america , europe/africa and asia .", "in south america , contract generation segment revenues increased $ 472 million due mainly to the acquisition of gener and the full year of operations at uruguaiana offset by reduced revenues at tiete from the electricity rationing in brazil .", "in europe/africa , contract generation segment revenues increased $ 88 million , and the acquisition of a controlling interest in kilroot during 2000 was the largest contributor to the increase .", "in asia , contract generation segment revenues increased $ 96 million , and increased operations from our ecogen peaking plant was the most significant contributor to the ."], "table": [["", "2001", "2000", "% (  % ) change"], ["contract generation", "$ 2.5 billion", "$ 1.7 billion", "47% ( 47 % )"], ["competitive supply", "$ 2.7 billion", "$ 2.4 billion", "13% ( 13 % )"], ["large utilities", "$ 2.4 billion", "$ 2.1 billion", "14% ( 14 % )"], ["growth distribution", "$ 1.7 billion", "$ 1.3 billion", "31% ( 31 % )"]], "table_ori": [["", "2001", "2000", "% Change"], ["Contract generation", "$2.5 billion", "$1.7 billion", "47%"], ["Competitive supply", "$2.7 billion", "$2.4 billion", "13%"], ["Large utilities", "$2.4 billion", "$2.1 billion", "14%"], ["Growth distribution", "$1.7 billion", "$1.3 billion", "31%"]]}

Question: what were 2001 total segment revenues in billions?
Evidence:
table_1: the contract generation of 2001 is $ 2.5 billion ; the contract generation of 2000 is $ 1.7 billion ; the contract generation of % ( % ) change is 47% ( 47 % ) ;
table_2: the competitive supply of 2001 is $ 2.7 billion ; the competitive supply of 2000 is $ 2.4 billion ; the competitive supply of % ( % ) change is 13% ( 13 % ) ;
table_3: the large utilities of 2001 is $ 2.4 billion ; the large utilities of 2000 is $ 2.1 billion ; the large utilities of % ( % ) change is 14% ( 14 % ) ;
table_4: the growth distribution of 2001 is $ 1.7 billion ; the growth distribution of 2000 is $ 1.3 billion ; the growth distribution of % ( % ) change is 31% ( 31 % ) ;
Program: add(2.5, 2.7), add(#0, 2.4), add(1.7, #1)
Answer:
str_answer: 9.3
exe_answer: 9.3