Please answer the given financial question based on the context.
Context: devon energy corporation and subsidiaries notes to consolidated financial statements 2013 ( continued ) debt maturities as of december 31 , 2013 , excluding premiums and discounts , are as follows ( in millions ) : .
|2014|$ 4067|
|2015|2014|
|2016|500|
|2017|750|
|2018|125|
|2019 and thereafter|6600|
|total|$ 12042|
credit lines devon has a $ 3.0 billion syndicated , unsecured revolving line of credit ( the 201csenior credit facility 201d ) that matures on october 24 , 2018 . however , prior to the maturity date , devon has the option to extend the maturity for up to one additional one-year period , subject to the approval of the lenders . amounts borrowed under the senior credit facility may , at the election of devon , bear interest at various fixed rate options for periods of up to twelve months . such rates are generally less than the prime rate . however , devon may elect to borrow at the prime rate . the senior credit facility currently provides for an annual facility fee of $ 3.8 million that is payable quarterly in arrears . as of december 31 , 2013 , there were no borrowings under the senior credit facility . the senior credit facility contains only one material financial covenant . this covenant requires devon 2019s ratio of total funded debt to total capitalization , as defined in the credit agreement , to be no greater than 65 percent . the credit agreement contains definitions of total funded debt and total capitalization that include adjustments to the respective amounts reported in the accompanying financial statements . also , total capitalization is adjusted to add back noncash financial write-downs such as full cost ceiling impairments or goodwill impairments . as of december 31 , 2013 , devon was in compliance with this covenant with a debt-to- capitalization ratio of 25.7 percent . commercial paper devon has access to $ 3.0 billion of short-term credit under its commercial paper program . commercial paper debt generally has a maturity of between 1 and 90 days , although it can have a maturity of up to 365 days , and bears interest at rates agreed to at the time of the borrowing . the interest rate is generally based on a standard index such as the federal funds rate , libor , or the money market rate as found in the commercial paper market . as of december 31 , 2013 , devon 2019s weighted average borrowing rate on its commercial paper borrowings was 0.30 percent . other debentures and notes following are descriptions of the various other debentures and notes outstanding at december 31 , 2013 , as listed in the table presented at the beginning of this note . geosouthern debt in december 2013 , in conjunction with the planned geosouthern acquisition , devon issued $ 2.25 billion aggregate principal amount of fixed and floating rate senior notes resulting in cash proceeds of approximately .
Question: what percentage of total debt maturities are from 2016 and 2017?
Answer:
10.38034