Financial report context:
management 2019s discussion and analysis 58 jpmorgan chase & co./2018 form 10-k net interest income and net yield excluding cib 2019s markets businesses in addition to reviewing net interest income and the net interest yield on a managed basis , management also reviews these metrics excluding cib 2019s markets businesses , as shown below ; these metrics , which exclude cib 2019s markets businesses , are non-gaap financial measures . management reviews these metrics to assess the performance of the firm 2019s lending , investing ( including asset-liability management ) and deposit-raising activities . the resulting metrics that exclude cib 2019s markets businesses are referred to as non-markets-related net interest income and net yield . cib 2019s markets businesses are fixed income markets and equity markets . management believes that disclosure of non-markets-related net interest income and net yield provides investors and analysts with other measures by which to analyze the non-markets-related business trends of the firm and provides a comparable measure to other financial institutions that are primarily focused on lending , investing and deposit-raising activities . year ended december 31 , ( in millions , except rates ) 2018 2017 2016 net interest income 2013 managed basis ( a ) ( b ) $ 55687 $ 51410 $ 47292 less : cib markets net interest income ( c ) 3087 4630 6334 net interest income excluding cib markets ( a ) $ 52600 $ 46780 $ 40958 average interest-earning assets $ 2229188 $ 2180592 $ 2101604 less : average cib markets interest-earning assets ( c ) 609635 540835 520307 average interest-earning assets excluding cib markets $ 1619553 $ 1639757 $ 1581297 net interest yield on average interest-earning assets 2013 managed basis 2.50% ( 2.50 % ) 2.36% ( 2.36 % ) 2.25% ( 2.25 % ) net interest yield on average cib markets interest-earning assets ( c ) 0.51 0.86 1.22 net interest yield on average interest-earning assets excluding cib markets 3.25% ( 3.25 % ) 2.85% ( 2.85 % ) 2.59% ( 2.59 % ) ( a ) interest includes the effect of related hedges . taxable-equivalent amounts are used where applicable . ( b ) for a reconciliation of net interest income on a reported and managed basis , refer to reconciliation from the firm 2019s reported u.s . gaap results to managed basis on page 57 . ( c ) for further information on cib 2019s markets businesses , refer to page 69 . calculation of certain u.s . gaap and non-gaap financial measures certain u.s . gaap and non-gaap financial measures are calculated as follows : book value per share ( 201cbvps 201d ) common stockholders 2019 equity at period-end / common shares at period-end overhead ratio total noninterest expense / total net revenue return on assets ( 201croa 201d ) reported net income / total average assets return on common equity ( 201croe 201d ) net income* / average common stockholders 2019 equity return on tangible common equity ( 201crotce 201d ) net income* / average tangible common equity tangible book value per share ( 201ctbvps 201d ) tangible common equity at period-end / common shares at period-end * represents net income applicable to common equity the firm also reviews adjusted expense , which is noninterest expense excluding firmwide legal expense and is therefore a non-gaap financial measure . additionally , certain credit metrics and ratios disclosed by the firm exclude pci loans , and are therefore non-gaap measures . management believes these measures help investors understand the effect of these items on reported results and provide an alternate presentation of the firm 2019s performance . for additional information on credit metrics and ratios excluding pci loans , refer to credit and investment risk management on pages 102-123. .

Financial table:
year ended december 31 ( in millions except rates ): net interest income 2013 managed basis ( a ) ( b ); 2018: $ 55687; 2017: $ 51410; 2016: $ 47292
year ended december 31 ( in millions except rates ): less : cib markets net interest income ( c ); 2018: 3087; 2017: 4630; 2016: 6334
year ended december 31 ( in millions except rates ): net interest income excluding cib markets ( a ); 2018: $ 52600; 2017: $ 46780; 2016: $ 40958
year ended december 31 ( in millions except rates ): average interest-earning assets; 2018: $ 2229188; 2017: $ 2180592; 2016: $ 2101604
year ended december 31 ( in millions except rates ): less : average cib markets interest-earning assets ( c ); 2018: 609635; 2017: 540835; 2016: 520307
year ended december 31 ( in millions except rates ): average interest-earning assets excluding cib markets; 2018: $ 1619553; 2017: $ 1639757; 2016: $ 1581297
year ended december 31 ( in millions except rates ): net interest yield on average interest-earning assets 2013 managed basis; 2018: 2.50% ( 2.50 % ); 2017: 2.36% ( 2.36 % ); 2016: 2.25% ( 2.25 % )
year ended december 31 ( in millions except rates ): net interest yield on average cib markets interest-earning assets ( c ); 2018: 0.51; 2017: 0.86; 2016: 1.22
year ended december 31 ( in millions except rates ): net interest yield on average interest-earning assets excluding cib markets; 2018: 3.25% ( 3.25 % ); 2017: 2.85% ( 2.85 % ); 2016: 2.59% ( 2.59 % )

Additional report context:
management 2019s discussion and analysis 58 jpmorgan chase & co./2018 form 10-k net interest income and net yield excluding cib 2019s markets businesses in addition to reviewing net interest income and the net interest yield on a managed basis , management also reviews these metrics excluding cib 2019s markets businesses , as shown below ; these metrics , which exclude cib 2019s markets businesses , are non-gaap financial measures . management reviews these metrics to assess the performance of the firm 2019s lending , investing ( including asset-liability management ) and deposit-raising activities . the resulting metrics that exclude cib 2019s markets businesses are referred to as non-markets-related net interest income and net yield . cib 2019s markets businesses are fixed income markets and equity markets . management believes that disclosure of non-markets-related net interest income and net yield provides investors and analysts with other measures by which to analyze the non-markets-related business trends of the firm and provides a comparable measure to other financial institutions that are primarily focused on lending , investing and deposit-raising activities . year ended december 31 , ( in millions , except rates ) 2018 2017 2016 net interest income 2013 managed basis ( a ) ( b ) $ 55687 $ 51410 $ 47292 less : cib markets net interest income ( c ) 3087 4630 6334 net interest income excluding cib markets ( a ) $ 52600 $ 46780 $ 40958 average interest-earning assets $ 2229188 $ 2180592 $ 2101604 less : average cib markets interest-earning assets ( c ) 609635 540835 520307 average interest-earning assets excluding cib markets $ 1619553 $ 1639757 $ 1581297 net interest yield on average interest-earning assets 2013 managed basis 2.50% ( 2.50 % ) 2.36% ( 2.36 % ) 2.25% ( 2.25 % ) net interest yield on average cib markets interest-earning assets ( c ) 0.51 0.86 1.22 net interest yield on average interest-earning assets excluding cib markets 3.25% ( 3.25 % ) 2.85% ( 2.85 % ) 2.59% ( 2.59 % ) ( a ) interest includes the effect of related hedges . taxable-equivalent amounts are used where applicable . ( b ) for a reconciliation of net interest income on a reported and managed basis , refer to reconciliation from the firm 2019s reported u.s . gaap results to managed basis on page 57 . ( c ) for further information on cib 2019s markets businesses , refer to page 69 . calculation of certain u.s . gaap and non-gaap financial measures certain u.s . gaap and non-gaap financial measures are calculated as follows : book value per share ( 201cbvps 201d ) common stockholders 2019 equity at period-end / common shares at period-end overhead ratio total noninterest expense / total net revenue return on assets ( 201croa 201d ) reported net income / total average assets return on common equity ( 201croe 201d ) net income* / average common stockholders 2019 equity return on tangible common equity ( 201crotce 201d ) net income* / average tangible common equity tangible book value per share ( 201ctbvps 201d ) tangible common equity at period-end / common shares at period-end * represents net income applicable to common equity the firm also reviews adjusted expense , which is noninterest expense excluding firmwide legal expense and is therefore a non-gaap financial measure . additionally , certain credit metrics and ratios disclosed by the firm exclude pci loans , and are therefore non-gaap measures . management believes these measures help investors understand the effect of these items on reported results and provide an alternate presentation of the firm 2019s performance . for additional information on credit metrics and ratios excluding pci loans , refer to credit and investment risk management on pages 102-123. .

Question: by how many basis points did net interest yield on average interest-earning assets 2013 managed basis improve form 2017 to 2018?
Answer: 14