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. .
[['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 % )']]
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