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 is payable semi-annually on june 1 and december 1 of each year . 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 comparable treasury security . the unamortized discount and debt issuance costs are being amortized over the remaining term of the 2022 notes . 2021 notes . in may 2011 , 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 4.25% ( 4.25 % ) notes maturing in may 2021 and $ 750 million of floating rate notes , which were repaid in may 2013 at maturity . net proceeds of this offering were used to fund the repurchase of blackrock 2019s series b preferred from affiliates of merrill lynch & co. , inc . interest on the 4.25% ( 4.25 % ) notes due in 2021 ( 201c2021 notes 201d ) is payable semi-annually on may 24 and november 24 of each year , and is approximately $ 32 million per year . the 2021 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 2021 notes . 2019 notes . in december 2009 , the company issued $ 2.5 billion in aggregate principal amount of unsecured and unsubordinated obligations . these notes were issued as three separate series of senior debt securities including $ 0.5 billion of 2.25% ( 2.25 % ) notes , which were repaid in december 2012 , $ 1.0 billion of 3.50% ( 3.50 % ) notes , which were repaid in december 2014 at maturity , and $ 1.0 billion of 5.0% ( 5.0 % ) notes maturing in december 2019 ( the 201c2019 notes 201d ) . net proceeds of this offering were used to repay borrowings under the cp program , which was used to finance a portion of the acquisition of barclays global investors from barclays on december 1 , 2009 , and for general corporate purposes . interest on the 2019 notes of approximately $ 50 million per year is payable semi-annually in arrears on june 10 and december 10 of each year . these 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 2019 notes . 13 . commitments and contingencies operating lease commitments the company leases its primary office spaces under agreements that expire through 2043 . future minimum commitments under these operating leases are as follows : ( in millions ) .

1	year	amount
2	2018	141
3	2019	132
4	2020	126
5	2021	118
6	2022	109
7	thereafter	1580
8	total	$ 2206

in may 2017 , the company entered into an agreement with 50 hymc owner llc , for the lease of approximately 847000 square feet of office space located at 50 hudson yards , new york , new york . the term of the lease is twenty years from the date that rental payments begin , expected to occur in may 2023 , with the option to renew for a specified term . the lease requires annual base rental payments of approximately $ 51 million per year during the first five years of the lease term , increasing every five years to $ 58 million , $ 66 million and $ 74 million per year ( or approximately $ 1.2 billion in base rent over its twenty-year term ) . this lease is classified as an operating lease and , as such , is not recorded as a liability on the consolidated statements of financial condition . rent expense and certain office equipment expense under lease agreements amounted to $ 132 million , $ 134 million and $ 136 million in 2017 , 2016 and 2015 , respectively . investment commitments . at december 31 , 2017 , the company had $ 298 million of various capital commitments to fund sponsored investment funds , including consolidated vies . these funds include private equity funds , real assets funds , and opportunistic funds . this amount excludes additional commitments made by consolidated funds of funds to underlying third-party funds as third-party noncontrolling interest holders have the legal obligation to fund the respective commitments of such funds of funds . generally , the timing of the funding of these commitments is unknown and the commitments are callable on demand at any time prior to the expiration of the commitment . these unfunded commitments are not recorded on the consolidated statements of financial condition . these commitments do not include potential future commitments approved by the company that are not yet legally binding . the company intends to make additional capital commitments from time to time to fund additional investment products for , and with , its clients . contingencies contingent payments related to business acquisitions . in connection with certain acquisitions , blackrock is required to make contingent payments , subject to achieving specified performance targets , which may include revenue related to acquired contracts or new capital commitments for certain products . the fair value of the remaining aggregate contingent payments at december 31 , 2017 totaled $ 236 million , including $ 128 million related to the first reserve transaction , and is included in other liabilities on the consolidated statements of financial condition. .

Previous questions in this conversation: what is the increased rent after five years? and the base rental during the first five years?
Previous answers: 58.0 51.0
Question: so what was the difference between these two values?
Answer: 7