Read the following texts and table with financial data from an S&P 500 earnings report carefully.Based on the question-answer history (if provided), answer the last question. The answer may require mathematical calculation based on the data provided.


performance of the company 2019s obligations under the senior notes , including any repurchase obligations resulting from a change of control , is unconditionally guaranteed , jointly and severally , on an unsecured basis , by each of hii 2019s existing and future domestic restricted subsidiaries that guarantees debt under the credit facility ( the 201csubsidiary guarantors 201d ) . the guarantees rank equally with all other unsecured and unsubordinated indebtedness of the guarantors . the subsidiary guarantors are each directly or indirectly 100% ( 100 % ) owned by hii . there are no significant restrictions on the ability of hii or any subsidiary guarantor to obtain funds from their respective subsidiaries by dividend or loan . mississippi economic development revenue bonds 2014as of december 31 , 2011 and 2010 , the company had $ 83.7 million outstanding from the issuance of industrial revenue bonds issued by the mississippi business finance corporation . these bonds accrue interest at a fixed rate of 7.81% ( 7.81 % ) per annum ( payable semi-annually ) and mature in 2024 . while repayment of principal and interest is guaranteed by northrop grumman systems corporation , hii has agreed to indemnify northrop grumman systems corporation for any losses related to the guaranty . in accordance with the terms of the bonds , the proceeds have been used to finance the construction , reconstruction , and renovation of the company 2019s interest in certain ship manufacturing and repair facilities , or portions thereof , located in the state of mississippi . gulf opportunity zone industrial development revenue bonds 2014as of december 31 , 2011 and 2010 , the company had $ 21.6 million outstanding from the issuance of gulf opportunity zone industrial development revenue bonds ( 201cgo zone irbs 201d ) issued by the mississippi business finance corporation . the go zone irbs were initially issued in a principal amount of $ 200 million , and in november 2010 , in connection with the anticipated spin-off , hii purchased $ 178 million of the bonds using the proceeds from a $ 178 million intercompany loan from northrop grumman . see note 20 : related party transactions and former parent company equity . the remaining bonds accrue interest at a fixed rate of 4.55% ( 4.55 % ) per annum ( payable semi-annually ) , and mature in 2028 . in accordance with the terms of the bonds , the proceeds have been used to finance the construction , reconstruction , and renovation of the company 2019s interest in certain ship manufacturing and repair facilities , or portions thereof , located in the state of mississippi . the estimated fair value of the company 2019s total long-term debt , including current portions , at december 31 , 2011 and 2010 , was $ 1864 million and $ 128 million , respectively . the fair value of the total long-term debt was calculated based on recent trades for most of the company 2019s debt instruments or based on interest rates prevailing on debt with substantially similar risks , terms and maturities . the aggregate amounts of principal payments due on long-term debt for each of the next five years and thereafter are : ( $ in millions ) . <table class='wikitable'><tr><td>1</td><td>2012</td><td>$ 29</td></tr><tr><td>2</td><td>2013</td><td>50</td></tr><tr><td>3</td><td>2014</td><td>79</td></tr><tr><td>4</td><td>2015</td><td>108</td></tr><tr><td>5</td><td>2016</td><td>288</td></tr><tr><td>6</td><td>thereafter</td><td>1305</td></tr><tr><td>7</td><td>total long-term debt</td><td>$ 1859</td></tr></table> 14 . investigations , claims , and litigation the company is involved in legal proceedings before various courts and administrative agencies , and is periodically subject to government examinations , inquiries and investigations . pursuant to fasb accounting standard codification 450 contingencies , the company has accrued for losses associated with investigations , claims and litigation when , and to the extent that , loss amounts related to the investigations , claims and litigation are probable and can be reasonably estimated . the actual losses that might be incurred to resolve such investigations , claims and litigation may be higher or lower than the amounts accrued . for matters where a material loss is probable or reasonably possible and the amount of loss cannot be reasonably estimated , but the company is able to reasonably estimate a range of possible losses , such estimated range is required to be disclosed in these notes . this estimated range would be based on information currently available to the company and would involve elements of judgment and significant uncertainties . this estimated range of possible loss would not represent the company 2019s maximum possible loss exposure . for matters as to which the company is not able to reasonably estimate a possible loss or range of loss , the company is required to indicate the reasons why it is unable to estimate the possible loss or range of loss . for matters not specifically described in these notes , the company does not believe , based on information currently available to it , that it is reasonably possible that the liabilities , if any , arising from .
Question: what is the value of the long-term debt due after 2016?
Answer: 1305.0
Question: and what is the total long-term debt?
Answer: 1859.0
Question: how much, then, does that value represent in relation to this total?
Answer: 0.70199
Question: and for the long-term debt due in the years of 2010 and 2011, how much does the 2011 represent in relation to the 2010 one?

14.5625