.
[['contractual obligations', '2015', '2016', '2017', '2018', '2019', 'thereafter', 'total'], ['long-term obligations excluding capital leases', '888810', '753045', '700608', '1787451', '3159286', '7188751', '14477951'], ['cash interest expense', '550000', '517000', '485000', '399000', '315000', '654000', '2920000'], ['capital lease payments ( including interest )', '15589', '14049', '12905', '12456', '10760', '173313', '239072'], ['total debt service obligations', '1454399', '1284094', '1198513', '2198907', '3485046', '8016064', '17637023'], ['operating lease payments ( 11 )', '574438', '553864', '538405', '519034', '502847', '4214600', '6903188'], ['other non-current liabilities ( 12 ) ( 13 )', '11082', '20480', '5705', '13911', '4186', '1860071', '1915435'], ['total', '$ 2039919', '$ 1858438', '$ 1742623', '$ 2731852', '$ 3992079', '$ 14090735', '$ 26455646']]
( 1 ) represents anticipated repayment date ; final legal maturity date is march 15 , 2043 .( 2 ) represents anticipated repayment date ; final legal maturity date is march 15 , 2048 .( 3 ) in connection with our acquisition of mipt on october 1 , 2013 , we assumed approximately $ 1.49 billion aggregate principal amount of secured notes , $ 250.0 million of which we repaid in august 2014 .the gtp notes have anticipated repayment dates beginning june 15 , 2016 .( 4 ) assumed in connection with our acquisition of br towers and denominated in brl .the br towers debenture amortizes through october 2023 .the br towers credit facility amortizes through january 15 , ( 5 ) assumed by us in connection with the unison acquisition , and have anticipated repayment dates of april 15 , 2017 , april 15 , 2020 and april 15 , 2020 , respectively , and a final maturity date of april 15 , 2040 .( 6 ) denominated in mxn .( 7 ) denominated in zar and amortizes through march 31 , 2020 .( 8 ) denominated in cop and amortizes through april 24 , 2021 .( 9 ) reflects balances owed to our joint venture partners in ghana and uganda .the ghana loan is denominated in ghs and the uganda loan is denominated in usd .( 10 ) on february 11 , 2015 , we redeemed all of the outstanding 4.625% ( 4.625 % ) notes in accordance with the terms thereof .( 11 ) includes payments under non-cancellable initial terms , as well as payments for certain renewal periods at our option , which we expect to renew because failure to renew could result in a loss of the applicable communications sites and related revenues from tenant leases .( 12 ) primarily represents our asset retirement obligations and excludes certain other non-current liabilities included in our consolidated balance sheet , primarily our straight-line rent liability for which cash payments are included in operating lease payments and unearned revenue that is not payable in cash .( 13 ) excludes $ 26.6 million of liabilities for unrecognized tax positions and $ 24.9 million of accrued income tax related interest and penalties included in our consolidated balance sheet as we are uncertain as to when and if the amounts may be settled .settlement of such amounts could require the use of cash flows generated from operations .we expect the unrecognized tax benefits to change over the next 12 months if certain tax matters ultimately settle with the applicable taxing jurisdiction during this timeframe .however , based on the status of these items and the amount of uncertainty associated with the outcome and timing of audit settlements , we are currently unable to estimate the impact of the amount of such changes , if any , to previously recorded uncertain tax positions .off-balance sheet arrangements .we have no material off-balance sheet arrangements as defined in item 303 ( a ) ( 4 ) ( ii ) of sec regulation s-k .interest rate swap agreements .we have entered into interest rate swap agreements to manage our exposure to variability in interest rates on debt in colombia and south africa .all of our interest rate swap agreements have been designated as cash flow hedges and have an aggregate notional amount of $ 79.9 million , interest rates ranging from 5.74% ( 5.74 % ) to 7.83% ( 7.83 % ) and expiration dates through april 2021 .in february 2014 , we repaid the costa rica loan and subsequently terminated the associated interest rate swap agreements .additionally , in connection with entering into the colombian credit facility in october 2014 , we terminated our pre-existing interest rate .

Question: assuming a midpoint interest rate in the range , what would be the annual interest expense on interest rate swap agreements based on the notional amounts , in millions?
Answer: 5.4