.

2015: long-term obligations excluding capital leases: 888810
cash interest expense: 550000
capital lease payments ( including interest ): 15589
total debt service obligations: 1454399
operating lease payments ( 11 ): 574438
other non-current liabilities ( 12 ) ( 13 ): 11082
total: 2039919
2016: long-term obligations excluding capital leases: 753045
cash interest expense: 517000
capital lease payments ( including interest ): 14049
total debt service obligations: 1284094
operating lease payments ( 11 ): 553864
other non-current liabilities ( 12 ) ( 13 ): 20480
total: 1858438
2017: long-term obligations excluding capital leases: 700608
cash interest expense: 485000
capital lease payments ( including interest ): 12905
total debt service obligations: 1198513
operating lease payments ( 11 ): 538405
other non-current liabilities ( 12 ) ( 13 ): 5705
total: 1742623
2018: long-term obligations excluding capital leases: 1787451
cash interest expense: 399000
capital lease payments ( including interest ): 12456
total debt service obligations: 2198907
operating lease payments ( 11 ): 519034
other non-current liabilities ( 12 ) ( 13 ): 13911
total: 2731852
2019: long-term obligations excluding capital leases: 3159286
cash interest expense: 315000
capital lease payments ( including interest ): 10760
total debt service obligations: 3485046
operating lease payments ( 11 ): 502847
other non-current liabilities ( 12 ) ( 13 ): 4186
total: 3992079
thereafter: long-term obligations excluding capital leases: 7188751
cash interest expense: 654000
capital lease payments ( including interest ): 173313
total debt service obligations: 8016064
operating lease payments ( 11 ): 4214600
other non-current liabilities ( 12 ) ( 13 ): 1860071
total: 14090735
total: long-term obligations excluding capital leases: 14477951
cash interest expense: 2920000
capital lease payments ( including interest ): 239072
total debt service obligations: 17637023
operating lease payments ( 11 ): 6903188
other non-current liabilities ( 12 ) ( 13 ): 1915435
total: 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 .

Questions:
what was the sum of the minimum and the maximum interest rates?
and what is the average between those two interest rates?
how much is this average interest rate numerically, or as a portion of the number one?
what, then, is the amount from the aggregate notional amount that is represented by that average interest rate, in millions?

Answers:
13.57
6.785
.06785
5.4