during the fixed rate interest period from may 3 , 2007 through may 14 , 2017 , interest will be at the annual rate of 6.6% ( 6.6 % ) , payable semi-annually in arrears on november 15 and may 15 of each year , commencing on november 15 , 2007 , subject to holdings 2019 right to defer interest on one or more occasions for up to ten consecutive years .
during the floating rate interest period from may 15 , 2017 through maturity , interest will be based on the 3 month libor plus 238.5 basis points , reset quarterly , payable quarterly in arrears on february 15 , may 15 , august 15 and november 15 of each year , subject to holdings 2019 right to defer interest on one or more occasions for up to ten consecutive years .
deferred interest will accumulate interest at the applicable rate compounded semi-annually for periods prior to may 15 , 2017 , and compounded quarterly for periods from and including may 15 , 2017 .
holdings can redeem the long term subordinated notes prior to may 15 , 2017 , in whole but not in part at the applicable redemption price , which will equal the greater of ( a ) 100% ( 100 % ) of the principal amount being redeemed and ( b ) the present value of the principal payment on may 15 , 2017 and scheduled payments of interest that would have accrued from the redemption date to may 15 , 2017 on the long term subordinated notes being redeemed , discounted to the redemption date on a semi-annual basis at a discount rate equal to the treasury rate plus an applicable spread of either 0.25% ( 0.25 % ) or 0.50% ( 0.50 % ) , in each case plus accrued and unpaid interest .
holdings may redeem the long term subordinated notes on or after may 15 , 2017 , in whole or in part at 100% ( 100 % ) of the principal amount plus accrued and unpaid interest ; however , redemption on or after the scheduled maturity date and prior to may 1 , 2047 is subject to a replacement capital covenant .
this covenant is for the benefit of certain senior note holders and it mandates that holdings receive proceeds from the sale of another subordinated debt issue , of at least similar size , before it may redeem the subordinated notes .
effective upon the maturity of the company 2019s 5.40% ( 5.40 % ) senior notes on october 15 , 2014 , the company 2019s 4.868% ( 4.868 % ) senior notes , due on june 1 , 2044 , have become the company 2019s long term indebtedness that ranks senior to the long term subordinated notes .
on march 19 , 2009 , group announced the commencement of a cash tender offer for any and all of the 6.60% ( 6.60 % ) fixed to floating rate long term subordinated notes .
upon expiration of the tender offer , the company had reduced its outstanding debt by $ 161441 thousand .
interest expense incurred in connection with these long term subordinated notes is as follows for the periods indicated: .

Years Ended December 31,
(Dollars in thousands)
2016
2015
2014
Interest expense incurred
$15,749
$15,749
$15,749

8 .
collateralized reinsurance and trust agreements certain subsidiaries of group have established trust agreements , which effectively use the company 2019s investments as collateral , as security for assumed losses payable to certain non-affiliated ceding companies .
at december 31 , 2016 , the total amount on deposit in trust accounts was $ 466029 thousand .
the company reinsures some of its catastrophe exposures with the segregated accounts of mt .
logan re .
mt .
logan re is a class 3 insurer registered in bermuda effective february 27 , 2013 under the segregated accounts companies act 2000 and 100% ( 100 % ) of the voting common shares are owned by group .
separate segregated accounts for mt .
logan re began being established effective july 1 , 2013 and non-voting , redeemable preferred shares have been issued to capitalize the segregated accounts .
each segregated account invests predominately in a diversified set of catastrophe exposures , diversified by risk/peril and across different geographic regions globally. .

Question: Analyse this data from a financial earnings document. what was the total interest expense incurred associated with the long term subordinated notes from 2014 to 2016 in thousands of dollars
Choices:
248031001
1398
-47247
47247
47247.0
Correct choice index: 4