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.

Text: the aes corporation notes to consolidated financial statements 2014 ( continued ) december 31 , 2010 , 2009 , and 2008 ( 3 ) multilateral loans include loans funded and guaranteed by bilaterals , multilaterals , development banks and other similar institutions . ( 4 ) non-recourse debt of $ 708 million as of december 31 , 2009 was excluded from non-recourse debt and included in current and long-term liabilities of held for sale and discontinued businesses in the accompanying consolidated balance sheets . non-recourse debt as of december 31 , 2010 is scheduled to reach maturity as set forth in the table below : december 31 , annual maturities ( in millions ) . <table class='wikitable'><tr><td>1</td><td>december 31,</td><td>annual maturities ( in millions )</td></tr><tr><td>2</td><td>2011</td><td>$ 2577</td></tr><tr><td>3</td><td>2012</td><td>657</td></tr><tr><td>4</td><td>2013</td><td>953</td></tr><tr><td>5</td><td>2014</td><td>1839</td></tr><tr><td>6</td><td>2015</td><td>1138</td></tr><tr><td>7</td><td>thereafter</td><td>7957</td></tr><tr><td>8</td><td>total non-recourse debt</td><td>$ 15121</td></tr></table> as of december 31 , 2010 , aes subsidiaries with facilities under construction had a total of approximately $ 432 million of committed but unused credit facilities available to fund construction and other related costs . excluding these facilities under construction , aes subsidiaries had approximately $ 893 million in a number of available but unused committed revolving credit lines to support their working capital , debt service reserves and other business needs . these credit lines can be used in one or more of the following ways : solely for borrowings ; solely for letters of credit ; or a combination of these uses . the weighted average interest rate on borrowings from these facilities was 3.24% ( 3.24 % ) at december 31 , 2010 . non-recourse debt covenants , restrictions and defaults the terms of the company 2019s non-recourse debt include certain financial and non-financial covenants . these covenants are limited to subsidiary activity and vary among the subsidiaries . these covenants may include but are not limited to maintenance of certain reserves , minimum levels of working capital and limitations on incurring additional indebtedness . compliance with certain covenants may not be objectively determinable . as of december 31 , 2010 and 2009 , approximately $ 803 million and $ 653 million , respectively , of restricted cash was maintained in accordance with certain covenants of the non-recourse debt agreements , and these amounts were included within 201crestricted cash 201d and 201cdebt service reserves and other deposits 201d in the accompanying consolidated balance sheets . various lender and governmental provisions restrict the ability of certain of the company 2019s subsidiaries to transfer their net assets to the parent company . such restricted net assets of subsidiaries amounted to approximately $ 5.4 billion at december 31 , 2010. .
Question: as of december 31, 2010, what was the amount of the non-recourse debt due in 2012?
Answer: 657.0
Question: and what was that total non-recourse debt?
Answer: 15121.0
Question: what percentage, then, did that amount represent in relation to this total?
Answer: 0.04345
Question: and what percentage did the amount of debt due in 2013 represent?

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0.06302
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