Please answer the given financial question based on the context.
Context: .
|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: The answer is:5.42122