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: notes receivable in 2014 , we entered into a $ 3.0 million promissory note with a privately held company which was recorded at cost . the interest rate on the promissory note is 8.0% ( 8.0 % ) per annum and is payable quarterly . all unpaid principal and accrued interest on the promissory note is due and payable on the earlier of august 26 , 2017 , or upon default . 5 . commitments and contingencies operating leases we lease various operating spaces in north america , europe , asia and australia under non-cancelable operating lease arrangements that expire on various dates through 2024 . these arrangements require us to pay certain operating expenses , such as taxes , repairs , and insurance and contain renewal and escalation clauses . we recognize rent expense under these arrangements on a straight-line basis over the term of the lease . as of december 31 , 2015 , the aggregate future minimum payments under non-cancelable operating leases consist of the following ( in thousands ) : years ending december 31 . <table class='wikitable'><tr><td>1</td><td>2016</td><td>$ 6306</td></tr><tr><td>2</td><td>2017</td><td>6678</td></tr><tr><td>3</td><td>2018</td><td>6260</td></tr><tr><td>4</td><td>2019</td><td>5809</td></tr><tr><td>5</td><td>2020</td><td>5580</td></tr><tr><td>6</td><td>thereafter</td><td>21450</td></tr><tr><td>7</td><td>total minimum future lease payments</td><td>$ 52083</td></tr></table> rent expense for all operating leases amounted to $ 6.7 million , $ 3.3 million and $ 3.6 million for the years ended december 31 , 2015 , 2014 and 2013 , respectively . financing obligation 2014build-to-suit lease in august 2012 , we executed a lease for a building then under construction in santa clara , california to serve as our headquarters . the lease term is 120 months and commenced in august 2013 . based on the terms of the lease agreement and due to our involvement in certain aspects of the construction such as our financial involvement in structural elements of asset construction , making decisions related to tenant improvement costs and purchasing insurance not reimbursable by the buyer-lessor ( the landlord ) , we were deemed the owner of the building ( for accounting purposes only ) during the construction period . we continue to maintain involvement in the property post construction completion and lack transferability of the risks and rewards of ownership , due to our required maintenance of a $ 4.0 million letter of credit , in addition to our ability and option to sublease our portion of the leased building for fees substantially higher than our base rate . due to our continued involvement in the property and lack of transferability of related risks and rewards of ownership to the landlord post construction , we account for the building and related improvements as a lease financing obligation . accordingly , as of december 31 , 2015 and 2014 , we have recorded assets of $ 53.4 million , representing the total costs of the building and improvements incurred , including the costs paid by the lessor ( the legal owner of the building ) and additional improvement costs paid by us , and a corresponding financing obligation of $ 42.5 million and $ 43.6 million , respectively . as of december 31 , 2015 , $ 1.3 million and $ 41.2 million were recorded as short-term and long-term financing obligations , respectively . land lease expense under our lease financing obligation included in rent expense above , amounted to $ 1.3 million and $ 1.2 million for the years ended december 31 , 2015 and 2014 , respectively . there was no land lease expense for the year ended december 31 , 2013. .
Question: as of december 31, 2015, what percentage did the 2016 non-cancelable operating leases represent in relation to the total minimum future lease payments?

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