pre_text: eog resources , inc . supplemental information to consolidated financial statements ( continued ) capitalized costs relating to oil and gas producing activities . the following table sets forth the capitalized costs relating to eog's crude oil and natural gas producing activities at december 31 , 2017 and 2016: .
post_text: costs incurred in oil and gas property acquisition , exploration and development activities . the acquisition , exploration and development costs disclosed in the following tables are in accordance with definitions in the extractive industries - oil and a gas topic of the accounting standards codification ( asc ) . acquisition costs include costs incurred to purchase , lease or otherwise acquire property . exploration costs include additions to exploratory wells , including those in progress , and exploration expenses . development costs include additions to production facilities and equipment and additions to development wells , including those in progress. .
table: 2017 2016
table: Proved properties $48,845,672 $45,751,965
table: Unproved properties 3,710,069 3,840,126
table: Total 52,555,741 49,592,091
table: Accumulated depreciation, depletion and amortization (29,191,247) (26,247,062)
table: Net capitalized costs $23,364,494 $23,345,029
question: Analyse this data from a financial earnings document. considering the year 2016 , what is the percentage of unproved properties among the total properties?