pre_text: with apb no . 25 . instead , companies will be required to account for such transactions using a fair-value method and recognize the related expense associated with share-based payments in the statement of operations . sfas 123r is effective for us as of january 1 , 2006 . we have historically accounted for share-based payments to employees under apb no . 25 2019s intrinsic value method . as such , we generally have not recognized compensation expense for options granted to employees . we will adopt the provisions of sfas 123r under the modified prospective method , in which compensation cost for all share-based payments granted or modified after the effective date is recognized based upon the requirements of sfas 123r , and compensation cost for all awards granted to employees prior to the effective date that are unvested as of the effective date of sfas 123r is recognized based on sfas 123 . tax benefits will be recognized related to the cost for share-based payments to the extent the equity instrument would ordinarily result in a future tax deduction under existing law . tax expense will be recognized to write off excess deferred tax assets when the tax deduction upon settlement of a vested option is less than the expense recorded in the statement of operations ( to the extent not offset by prior tax credits for settlements where the tax deduction was greater than the fair value cost ) . we estimate that we will recognize equity-based compensation expense of approximately $ 35 million to $ 38 million for the year ending december 31 , 2006 . this amount is subject to revisions as we finalize certain assumptions related to 2006 , including the size and nature of awards and forfeiture rates . sfas 123r also requires the benefits of tax deductions in excess of recognized compensation cost be reported as a financing cash flow rather than as operating cash flow as was previously required . we cannot estimate what the future tax benefits will be as the amounts depend on , among other factors , future employee stock option exercises . due to the our tax loss position , there was no operating cash inflow realized for december 31 , 2005 and 2004 for such excess tax deductions . in march 2005 , the sec issued staff accounting bulletin ( sab ) no . 107 regarding the staff 2019s interpretation of sfas 123r . this interpretation provides the staff 2019s views regarding interactions between sfas 123r and certain sec rules and regulations and provides interpretations of the valuation of share-based payments for public companies . the interpretive guidance is intended to assist companies in applying the provisions of sfas 123r and investors and users of the financial statements in analyzing the information provided . we will follow the guidance prescribed in sab no . 107 in connection with our adoption of sfas 123r . information presented pursuant to the indentures of our 7.50% ( 7.50 % ) notes , 7.125% ( 7.125 % ) notes and ati 7.25% ( 7.25 % ) the following table sets forth information that is presented solely to address certain tower cash flow reporting requirements contained in the indentures for our 7.50% ( 7.50 % ) notes , 7.125% ( 7.125 % ) notes and ati 7.25% ( 7.25 % ) notes . the information contained in note 19 to our consolidated financial statements is also presented to address certain reporting requirements contained in the indenture for our ati 7.25% ( 7.25 % ) notes . the following table presents tower cash flow , adjusted consolidated cash flow and non-tower cash flow for the company and its restricted subsidiaries , as defined in the indentures for the applicable notes ( in thousands ) : .
post_text: .
table: Tower Cash Flow, for the three months ended December 31, 2005 $139,590
table: Consolidated Cash Flow, for the twelve months ended December 31, 2005 $498,266
table: Less: Tower Cash Flow, for the twelve months ended December 31, 2005 (524,804)
table: Plus: four times Tower Cash Flow, for the three months ended December 31, 2005 558,360
table: Adjusted Consolidated Cash Flow, for the twelve months ended December 31, 2005 $531,822
table: Non-Tower Cash Flow, for the twelve months ended December 31, 2005 $(30,584)
question: Analyse this data from a financial earnings document. what portion of the adjusted consolidated cash flow for the twelve months ended december 31 , 2005 is related to tower cash flow?