{"pre_text": ["december 2016 acquisition of camber and higher volumes in fleet support and oil and gas services , partially offset by lower nuclear and environmental volumes due to the resolution in 2016 of outstanding contract changes on a nuclear and environmental commercial contract .", "segment operating income 2018 - operating income in the technical solutions segment for the year ended december 31 , 2018 , was $ 32 million , compared to operating income of $ 21 million in 2017 .", "the increase was primarily due to an allowance for accounts receivable in 2017 on a nuclear and environmental commercial contract and higher income from operating investments at our nuclear and environmental joint ventures , partially offset by one time employee bonus payments in 2018 related to the tax act and lower performance in fleet support services .", "2017 - operating income in the technical solutions segment for the year ended december 31 , 2017 , was $ 21 million , compared to operating income of $ 8 million in 2016 .", "the increase was primarily due to improved performance in oil and gas services and higher volume in mdis services following the december 2016 acquisition of camber , partially offset by the establishment of an allowance for accounts receivable on a nuclear and environmental commercial contract in 2017 and the resolution in 2016 of outstanding contract changes on a nuclear and environmental commercial contract .", "backlog total backlog as of december 31 , 2018 , was approximately $ 23 billion .", "total backlog includes both funded backlog ( firm orders for which funding is contractually obligated by the customer ) and unfunded backlog ( firm orders for which funding is not currently contractually obligated by the customer ) .", "backlog excludes unexercised contract options and unfunded idiq orders .", "for contracts having no stated contract values , backlog includes only the amounts committed by the customer .", "the following table presents funded and unfunded backlog by segment as of december 31 , 2018 and 2017: ."], "post_text": ["we expect approximately 30% ( 30 % ) of the $ 23 billion total backlog as of december 31 , 2018 , to be converted into sales in 2019 .", "u.s .", "government orders comprised substantially all of the backlog as of december 31 , 2018 and 2017 .", "awards 2018 - the value of new contract awards during the year ended december 31 , 2018 , was approximately $ 9.8 billion .", "significant new awards during the period included contracts for the construction of three arleigh burke class ( ddg 51 ) destroyers , for the detail design and construction of richard m .", "mccool jr .", "( lpd 29 ) , for procurement of long-lead-time material for enterprise ( cvn 80 ) , and for the construction of nsc 10 ( unnamed ) and nsc 11 ( unnamed ) .", "in addition , we received awards in 2019 valued at $ 15.2 billion for detail design and construction of the gerald r .", "ford class ( cvn 78 ) aircraft carriers enterprise ( cvn 80 ) and cvn 81 ( unnamed ) .", "2017 - the value of new contract awards during the year ended december 31 , 2017 , was approximately $ 8.1 billion .", "significant new awards during this period included the detailed design and construction contract for bougainville ( lha 8 ) and the execution contract for the rcoh of uss george washington ( cvn 73 ) . ."], "table": [["( $ in millions )", "december 31 2018 funded", "december 31 2018 unfunded", "december 31 2018 total backlog", "december 31 2018 funded", "december 31 2018 unfunded", "total backlog"], ["ingalls", "$ 9943", "$ 1422", "$ 11365", "$ 5920", "$ 2071", "$ 7991"], ["newport news", "6767", "4144", "10911", "6976", "5608", "12584"], ["technical solutions", "339", "380", "719", "478", "314", "792"], ["total backlog", "$ 17049", "$ 5946", "$ 22995", "$ 13374", "$ 7993", "$ 21367"]], "table_ori": [["", "December 31, 2018", "December 31, 2017"], ["($ in millions)", "Funded", "Unfunded", "Total Backlog", "Funded", "Unfunded", "Total Backlog"], ["Ingalls", "$9,943", "$1,422", "$11,365", "$5,920", "$2,071", "$7,991"], ["Newport News", "6,767", "4,144", "10,911", "6,976", "5,608", "12,584"], ["Technical Solutions", "339", "380", "719", "478", "314", "792"], ["Total backlog", "$17,049", "$5,946", "$22,995", "$13,374", "$7,993", "$21,367"]]}

Question: what is the growth rate of operating income for technical solutions segment from 2017 to 2018?
Evidence:
text_1: segment operating income 2018 - operating income in the technical solutions segment for the year ended december 31 , 2018 , was $ 32 million , compared to operating income of $ 21 million in 2017 .
Program: subtract(32, 21), divide(#0, 21)
Answer:
str_answer: 52.4%
exe_answer: 0.52381