12 .
borrowings short-term borrowings 2015 revolving credit facility .
in march 2011 , the company entered into a five-year $ 3.5 billion unsecured revolving credit facility , which was amended in 2014 , 2013 and 2012 .
in april 2015 , the company 2019s credit facility was further amended to extend the maturity date to march 2020 and to increase the amount of the aggregate commitment to $ 4.0 billion ( the 201c2015 credit facility 201d ) .
the 2015 credit facility permits the company to request up to an additional $ 1.0 billion of borrowing capacity , subject to lender credit approval , increasing the overall size of the 2015 credit facility to an aggregate principal amount not to exceed $ 5.0 billion .
interest on borrowings outstanding accrues at a rate based on the applicable london interbank offered rate plus a spread .
the 2015 credit facility requires the company not to exceed a maximum leverage ratio ( ratio of net debt to earnings before interest , taxes , depreciation and amortization , where net debt equals total debt less unrestricted cash ) of 3 to 1 , which was satisfied with a ratio of less than 1 to 1 at december 31 , 2015 .
the 2015 credit facility provides back-up liquidity to fund ongoing working capital for general corporate purposes and various investment opportunities .
at december 31 , 2015 , the company had no amount outstanding under the 2015 credit facility .
commercial paper program .
on october 14 , 2009 , blackrock established a commercial paper program ( the 201ccp program 201d ) under which the company could issue unsecured commercial paper notes ( the 201ccp notes 201d ) on a private placement basis up to a maximum aggregate amount outstanding at any time of $ 4.0 billion as amended in april 2015 .
the cp program is currently supported by the 2015 credit facility .
at december 31 , 2015 , blackrock had no cp notes outstanding .
long-term borrowings the carrying value and fair value of long-term borrowings estimated using market prices and foreign exchange rates at december 31 , 2015 included the following : ( in millions ) maturity amount unamortized discount and debt issuance costs carrying value fair value .

(in millions)
MaturityAmount
Unamortized Discount and Debt Issuance Costs
Carrying Value
Fair Value
6.25% Notes due 2017
$700
$(1)
$699
$757
5.00% Notes due 2019
1,000
(3)
997
1,106
4.25% Notes due 2021
750
(5)
745
828
3.375% Notes due 2022
750
(6)
744
773
3.50% Notes due 2024
1,000
(8)
992
1,030
1.25% Notes due 2025
760
(7)
753
729
Total Long-term Borrowings
$4,960
$(30)
$4,930
$5,223

long-term borrowings at december 31 , 2014 had a carrying value of $ 4.922 billion and a fair value of $ 5.309 billion determined using market prices at the end of december 2025 notes .
in may 2015 , the company issued 20ac700 million of 1.25% ( 1.25 % ) senior unsecured notes maturing on may 6 , 2025 ( the 201c2025 notes 201d ) .
the notes are listed on the new york stock exchange .
the net proceeds of the 2025 notes were used for general corporate purposes , including refinancing of outstanding indebtedness .
interest of approximately $ 10 million per year based on current exchange rates is payable annually on may 6 of each year .
the 2025 notes may be redeemed in whole or in part prior to maturity at any time at the option of the company at a 201cmake-whole 201d redemption price .
the unamortized discount and debt issuance costs are being amortized over the remaining term of the 2025 notes .
upon conversion to u.s .
dollars the company designated the 20ac700 million debt offering as a net investment hedge to offset its currency exposure relating to its net investment in certain euro functional currency operations .
a gain of $ 19 million , net of tax , was recognized in other comprehensive income for 2015 .
no hedge ineffectiveness was recognized during 2015 .
2024 notes .
in march 2014 , the company issued $ 1.0 billion in aggregate principal amount of 3.50% ( 3.50 % ) senior unsecured and unsubordinated notes maturing on march 18 , 2024 ( the 201c2024 notes 201d ) .
the net proceeds of the 2024 notes were used to refinance certain indebtedness which matured in the fourth quarter of 2014 .
interest is payable semi-annually in arrears on march 18 and september 18 of each year , or approximately $ 35 million per year .
the 2024 notes may be redeemed prior to maturity at any time in whole or in part at the option of the company at a 201cmake-whole 201d redemption price .
the unamortized discount and debt issuance costs are being amortized over the remaining term of the 2024 notes .
2022 notes .
in may 2012 , the company issued $ 1.5 billion in aggregate principal amount of unsecured unsubordinated obligations .
these notes were issued as two separate series of senior debt securities , including $ 750 million of 1.375% ( 1.375 % ) notes , which were repaid in june 2015 at maturity , and $ 750 million of 3.375% ( 3.375 % ) notes maturing in june 2022 ( the 201c2022 notes 201d ) .
net proceeds were used to fund the repurchase of blackrock 2019s common stock and series b preferred from barclays and affiliates and for general corporate purposes .
interest on the 2022 notes of approximately $ 25 million per year , respectively , is payable semi-annually on june 1 and december 1 of each year , which commenced december 1 , 2012 .
the 2022 notes may be redeemed prior to maturity at any time in whole or in part at the option of the company at a 201cmake-whole 201d redemption price .
the 201cmake-whole 201d redemption price represents a price , subject to the specific terms of the 2022 notes and related indenture , that is the greater of ( a ) par value and ( b ) the present value of future payments that will not be paid because of an early redemption , which is discounted at a fixed spread over a .

Question: Analyse this data from a financial earnings document. what portion of total long-term borrowings is due in the next 36 months as of december 31 , 2015?
Choices:
5659
5.7
670
720
5660.0
Correct choice index: 4