item 7 . management 2019s discussion and analysis of financial condition and results of operations introduction the following discussion and analysis presents management 2019s perspective of our business , financial condition and overall performance . this information is intended to provide investors with an understanding of our past performance , current financial condition and outlook for the future and should be read in conjunction with 201citem 8 . financial statements and supplementary data 201d of this report . overview of 2017 results during 2017 , we generated solid operating results with our strategy of operating in north america 2019s best resource plays , delivering superior execution , continuing disciplined capital allocation and maintaining a high degree of financial strength . led by our development in the stack and delaware basin , we continued to improve our 90-day initial production rates . with investments in proprietary data tools , predictive analytics and artificial intelligence , we are delivering industry-leading , initial-rate well productivity performance and improving the performance of our established wells . compared to 2016 , commodity prices increased significantly and were the primary driver for improvements in devon 2019s earnings and cash flow during 2017 . we exited 2017 with liquidity comprised of $ 2.7 billion of cash and $ 2.9 billion of available credit under our senior credit facility . we have no significant debt maturities until 2021 . we further enhanced our financial strength by completing approximately $ 415 million of our announced $ 1 billion asset divestiture program in 2017 . we anticipate closing the remaining divestitures in 2018 . in 2018 and beyond , we have the financial capacity to further accelerate investment across our best-in-class u.s . resource plays . we are increasing drilling activity and will continue to shift our production mix to high-margin products . we will continue our premier technical work to drive capital allocation and efficiency and industry- leading well productivity results . we will continue to maximize the value of our base production by sustaining the operational efficiencies we have achieved . finally , we will continue to manage activity levels within our cash flows . we expect this disciplined approach will position us to deliver capital-efficient , cash-flow expansion over the next two years . key measures of our financial performance in 2017 are summarized in the following table . increased commodity prices as well as continued focus on our production expenses improved our 2017 financial performance as compared to 2016 , as seen in the table below . more details for these metrics are found within the 201cresults of operations 2013 2017 vs . 2016 201d , below. .

2017 $ 898: net earnings ( loss ) per diluted share attributable to devon: 1.7
core earnings ( loss ) attributable to devon ( 1 ): 427
core earnings ( loss ) per diluted share attributable to devon ( 1 ): 0.81
retained production ( mboe/d ): 541
total production ( mboe/d ): 543
realized price per boe ( 2 ): 25.96
operating cash flow: 2909
capitalized expenditures including acquisitions: 2937
shareholder and noncontrolling interests distributions: 481
cash and cash equivalents: 2673
total debt: 10406
reserves ( mmboe ): 2152
change +185% ( +185 % ): net earnings ( loss ) per diluted share attributable to devon: -181
core earnings ( loss ) attributable to devon ( 1 ): -217
core earnings ( loss ) per diluted share attributable to devon ( 1 ): -210
retained production ( mboe/d ): -4
total production ( mboe/d ): -11
realized price per boe ( 2 ): -39
operating cash flow: -94
capitalized expenditures including acquisitions: -25
shareholder and noncontrolling interests distributions: -8
cash and cash equivalents: -36
total debt: -2
reserves ( mmboe ): -5
2016* $ -1056 ( 1056 ): net earnings ( loss ) per diluted share attributable to devon: -2.09
core earnings ( loss ) attributable to devon ( 1 ): -367
core earnings ( loss ) per diluted share attributable to devon ( 1 ): -0.73
retained production ( mboe/d ): 563
total production ( mboe/d ): 611
realized price per boe ( 2 ): 18.72
operating cash flow: 1500
capitalized expenditures including acquisitions: 3908
shareholder and noncontrolling interests distributions: 525
cash and cash equivalents: 1959
total debt: 10154
reserves ( mmboe ): 2058
change +92% ( +92 % ): net earnings ( loss ) per diluted share attributable to devon: -93
core earnings ( loss ) attributable to devon ( 1 ): -430
core earnings ( loss ) per diluted share attributable to devon ( 1 ): -382
retained production ( mboe/d ): -3
total production ( mboe/d ): -10
realized price per boe ( 2 ): -14
operating cash flow: -69
capitalized expenditures including acquisitions: -32
shareholder and noncontrolling interests distributions: -19
cash and cash equivalents: -15
total debt: -22
reserves ( mmboe ): -6
2015* $ -12896 ( 12896 ): net earnings ( loss ) per diluted share attributable to devon: -31.72
core earnings ( loss ) attributable to devon ( 1 ): 111
core earnings ( loss ) per diluted share attributable to devon ( 1 ): 0.26
retained production ( mboe/d ): 580
total production ( mboe/d ): 680
realized price per boe ( 2 ): 21.68
operating cash flow: 4898
capitalized expenditures including acquisitions: 5712
shareholder and noncontrolling interests distributions: 650
cash and cash equivalents: 2310
total debt: 13032
reserves ( mmboe ): 2182

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Questions:
for 2017, what is the ratio of operating cash flow to total debt?
and in 2016?

Answers:
3.57
6.77