n o t e s t o c o n s o l i d a t e d f i n a n c i a l s t a t e m e n t s ( c o n t i n u e d ) the realization of this investment gain ( $ 5624 net of the award ) . this award , which will be paid out over a three-year period , is presented as deferred compensation award on the balance sheet . as of december 31 , 2002 , $ 1504 had been paid against this compensation award . 401 ( k ) plan during august 1997 , the company implemented a 401 ( k ) savings/retirement plan ( the 201c401 ( k ) plan 201d ) to cover eligible employees of the company and any designated affiliate . the 401 ( k ) plan permits eligible employees of the company to defer up to 15% ( 15 % ) of their annual compensation , subject to cer- tain limitations imposed by the code . the employees 2019 elec- tive deferrals are immediately vested and non-forfeitable upon contribution to the 401 ( k ) plan . during 2000 , the company amended its 401 ( k ) plan to include a matching contribution , subject to erisa limitations , equal to 50% ( 50 % ) of the first 4% ( 4 % ) of annual compensation deferred by an employee . for the years ended december 31 , 2002 , 2001 and 2000 , the company made matching contributions of $ 140 , $ 116 and $ 54 , respectively . 18 . commitments and contingencies the company and the operating partnership are not presently involved in any material litigation nor , to their knowledge , is any material litigation threatened against them or their properties , other than routine litigation arising in the ordinary course of business . management believes the costs , if any , incurred by the company and the operating partnership related to this litigation will not materially affect the financial position , operating results or liquidity of the company and the operating partnership . on october 24 , 2001 , an accident occurred at 215 park avenue south , a property which the company manages , but does not own . personal injury claims have been filed against the company and others by 11 persons . the company believes that there is sufficient insurance coverage to cover the cost of such claims , as well as any other personal injury or property claims which may arise . the company has entered into employment agreements with certain executives . six executives have employment agreements which expire between november 2003 and december 2007 . the cash based compensation associated with these employment agreements totals approximately $ 2125 for 2003 . during march 1998 , the company acquired an operating sub-leasehold position at 420 lexington avenue . the oper- ating sub-leasehold position requires annual ground lease payments totaling $ 6000 and sub-leasehold position pay- ments totaling $ 1100 ( excluding an operating sub-lease position purchased january 1999 ) . the ground lease and sub-leasehold positions expire 2008 . the company may extend the positions through 2029 at market rents . the property located at 1140 avenue of the americas operates under a net ground lease ( $ 348 annually ) with a term expiration date of 2016 and with an option to renew for an additional 50 years . the property located at 711 third avenue operates under an operating sub-lease which expires in 2083 . under the sub- lease , the company is responsible for ground rent payments of $ 1600 annually which increased to $ 3100 in july 2001 and will continue for the next ten years . the ground rent is reset after year ten based on the estimated fair market value of the property . in april 1988 , the sl green predecessor entered into a lease agreement for property at 673 first avenue in new york city , which has been capitalized for financial statement purposes . land was estimated to be approximately 70% ( 70 % ) of the fair market value of the property . the portion of the lease attributed to land is classified as an operating lease and the remainder as a capital lease . the initial lease term is 49 years with an option for an additional 26 years . beginning in lease years 11 and 25 , the lessor is entitled to additional rent as defined by the lease agreement . the company continues to lease the 673 first avenue prop- erty which has been classified as a capital lease with a cost basis of $ 12208 and cumulative amortization of $ 3579 and $ 3306 at december 31 , 2002 and 2001 , respectively . the fol- lowing is a schedule of future minimum lease payments under capital leases and noncancellable operating leases with initial terms in excess of one year as of december 31 , 2002 . non-cancellable operating december 31 , capital leases leases .
the lessor is entitled to additional rent as defined by the lease agreement for what percentage of the original agreement?
19 . financial instruments : derivatives and hedging financial accounting standards board 2019s statement no . 133 , 201caccounting for derivative instruments and hedging activities , 201d ( 201csfas 133 201d ) which became effective january 1 , 2001 requires the company to recognize all derivatives on the balance sheet at fair value . derivatives that are not hedges must be adjusted to fair value through income . if a derivative is a hedge , depending on the nature of the hedge , f i f t y - t w o s l g r e e n r e a l t y c o r p . .