Read the following texts and table with financial data from an S&P 500 earnings report carefully.Based on the question-answer history (if provided), answer the last question. The answer may require mathematical calculation based on the data provided.


14 . accounting for certain long-lived assets eog reviews its proved oil and gas properties for impairment purposes by comparing the expected undiscounted future cash flows at a depreciation , depletion and amortization group level to the unamortized capitalized cost of the asset . the carrying rr values for assets determined to be impaired were adjusted to estimated fair value using the income approach described in the fair value measurement topic of the asc . in certain instances , eog utilizes accepted offers from third-party purchasers as the basis for determining fair value . during 2017 , proved oil and gas properties with a carrying amount of $ 370 million were written down to their fair value of $ 146 million , resulting in pretax impairment charges of $ 224 million . during 2016 , proved oil and gas properties with a carrying rr amount of $ 643 million were written down to their fair value of $ 527 million , resulting in pretax impairment charges of $ 116 million . impairments in 2017 , 2016 and 2015 included domestic legacy natural gas assets . amortization and impairments of unproved oil and gas property costs , including amortization of capitalized interest , were $ 211 million , $ 291 million and $ 288 million during 2017 , 2016 and 2015 , respectively . 15 . asset retirement obligations the following table presents the reconciliation of the beginning and ending aggregate carrying amounts of short-term and long-term legal obligations associated with the retirement of property , plant and equipment for the years ended december 31 , 2017 and 2016 ( in thousands ) : . <table class='wikitable'><tr><td>1</td><td>-</td><td>2017</td><td>2016</td></tr><tr><td>2</td><td>carrying amount at beginning of period</td><td>$ 912926</td><td>$ 811554</td></tr><tr><td>3</td><td>liabilities incurred ( 1 )</td><td>54764</td><td>212739</td></tr><tr><td>4</td><td>liabilities settled ( 2 )</td><td>-61871 ( 61871 )</td><td>-94800 ( 94800 )</td></tr><tr><td>5</td><td>accretion</td><td>34708</td><td>32306</td></tr><tr><td>6</td><td>revisions</td><td>-9818 ( 9818 )</td><td>-38286 ( 38286 )</td></tr><tr><td>7</td><td>foreign currency translations</td><td>16139</td><td>-10587 ( 10587 )</td></tr><tr><td>8</td><td>carrying amount at end of period</td><td>$ 946848</td><td>$ 912926</td></tr><tr><td>9</td><td>current portion</td><td>$ 19259</td><td>$ 18516</td></tr><tr><td>10</td><td>noncurrent portion</td><td>$ 927589</td><td>$ 894410</td></tr></table> ( 1 ) includes $ 164 million in 2016 related to yates transaction ( see note 17 ) . ( 2 ) includes settlements related to asset sales . the current and noncurrent portions of eog's asset retirement obligations are included in current liabilities - other and other liabilities , respectively , on the consolidated balance sheets. .
Question: what is the ratio of 2017 accretion to 2016?
Answer: 1.07435
Question: what is that less 1?

0.07435