contractual obligations fis 2019 long-term contractual obligations generally include its long-term debt , interest on long-term debt , lease payments on certain of its property and equipment and payments for data processing and maintenance .for more descriptive information regarding the company's long-term debt , see note 13 in the notes to consolidated financial statements .the following table summarizes fis 2019 significant contractual obligations and commitments as of december 31 , 2012 ( in millions ) : less than 1-3 3-5 more than total 1 year years years 5 years .
[['', 'total', 'less than 1 year', '1-3 years', '3-5 years', 'more than 5 years'], ['long-term debt', '$ 4385.5', '$ 153.9', '$ 757.1', '$ 2274.5', '$ 1200.0'], ['interest ( 1 )', '1137.6', '200.4', '372.9', '288.8', '275.5'], ['operating leases', '226.6', '55.0', '96.2', '46.4', '29.0'], ['data processing and maintenance', '246.7', '131.7', '78.9', '28.4', '7.7'], ['other contractual obligations ( 2 )', '100.7', '18.8', '52.0', '10.6', '19.3'], ['total', '$ 6097.1', '$ 559.8', '$ 1357.1', '$ 2648.7', '$ 1531.5']]
( 1 ) these calculations assume that : ( a ) applicable margins remain constant ; ( b ) all variable rate debt is priced at the one-month libor rate in effect as of december 31 , 2012 ; ( c ) no new hedging transactions are effected ; ( d ) only mandatory debt repayments are made ; and ( e ) no refinancing occurs at debt maturity .( 2 ) amount includes the payment for labor claims related to fis' former item processing and remittance operations in brazil ( see note 3 to the consolidated financial statements ) and amounts due to the brazilian venture partner .fis believes that its existing cash balances , cash flows from operations and borrowing programs will provide adequate sources of liquidity and capital resources to meet fis 2019 expected short-term liquidity needs and its long-term needs for the operations of its business , expected capital spending for the next 12 months and the foreseeable future and the satisfaction of these obligations and commitments .off-balance sheet arrangements fis does not have any off-balance sheet arrangements .item 7a .quantitative and qualitative disclosure about market risks market risk we are exposed to market risks primarily from changes in interest rates and foreign currency exchange rates .we use certain derivative financial instruments , including interest rate swaps and foreign currency forward exchange contracts , to manage interest rate and foreign currency risk .we do not use derivatives for trading purposes , to generate income or to engage in speculative activity .interest rate risk in addition to existing cash balances and cash provided by operating activities , we use fixed rate and variable rate debt to finance our operations .we are exposed to interest rate risk on these debt obligations and related interest rate swaps .the notes ( as defined in note 13 to the consolidated financial statements ) represent substantially all of our fixed-rate long-term debt obligations .the carrying value of the notes was $ 1950.0 million as of december 31 , 2012 .the fair value of the notes was approximately $ 2138.2 million as of december 31 , 2012 .the potential reduction in fair value of the notes from a hypothetical 10 percent increase in market interest rates would not be material to the overall fair value of the debt .our floating rate long-term debt obligations principally relate to borrowings under the fis credit agreement ( as also defined in note 13 to the consolidated financial statements ) .an increase of 100 basis points in the libor rate would increase our annual debt service under the fis credit agreement , after we include the impact of our interest rate swaps , by $ 9.3 million ( based on principal amounts outstanding as of december 31 , 2012 ) .we performed the foregoing sensitivity analysis based on the principal amount of our floating rate debt as of december 31 , 2012 , less the principal amount of such debt that was then subject to an interest rate swap converting such debt into fixed rate debt .this sensitivity analysis is based solely on .

Question: what portion of the total contractual obligations are related to long-term debt?
Answer: 71.9%