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: .

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

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 ) . .

Question: Analyse this data from a financial earnings document. what was the percentage increase in the operating income from 2016 to 2017
Choices:
1.605
-0.25
1.875
1.625
0
Correct choice index: 3