american tower corporation and subsidiaries notes to consolidated financial statements 2014 ( continued ) the 7.50% ( 7.50 % ) notes mature on may 1 , 2012 and interest is payable semi-annually in arrears on may 1 and november 1 each year beginning may 1 , 2004 . the company may redeem the 7.50% ( 7.50 % ) notes after may 1 , 2008 . the initial redemption price on the 7.50% ( 7.50 % ) notes is 103.750% ( 103.750 % ) of the principal amount , subject to a ratable decline after may 1 of the following year to 100% ( 100 % ) of the principal amount in 2010 and thereafter . the company may also redeem up to 35% ( 35 % ) of the 7.50% ( 7.50 % ) notes any time prior to february 1 , 2007 ( at a price equal to 107.50% ( 107.50 % ) of the principal amount of the notes plus accrued and unpaid interest , if any ) , with the net cash proceeds of certain public equity offerings within sixty days after the closing of any such offering . the 7.50% ( 7.50 % ) notes rank equally with the 5.0% ( 5.0 % ) convertible notes and its 93 20448% ( 20448 % ) notes and are structurally and effectively junior to indebtedness outstanding under the credit facilities , the ati 12.25% ( 12.25 % ) notes and the ati 7.25% ( 7.25 % ) notes . the indenture for the 7.50% ( 7.50 % ) notes contains certain covenants that restrict the company 2019s ability to incur more debt ; guarantee indebtedness ; issue preferred stock ; pay dividends ; make certain investments ; merge , consolidate or sell assets ; enter into transactions with affiliates ; and enter into sale leaseback transactions . 6.25% ( 6.25 % ) notes redemption 2014in february 2004 , the company completed the redemption of all of its outstanding $ 212.7 million principal amount of 6.25% ( 6.25 % ) notes . the 6.25% ( 6.25 % ) notes were redeemed pursuant to the terms of the indenture at 102.083% ( 102.083 % ) of the principal amount plus unpaid and accrued interest . the total aggregate redemption price was $ 221.9 million , including $ 4.8 million in accrued interest . the company will record a charge of $ 7.1 million in the first quarter of 2004 from the loss on redemption and write-off of deferred financing fees . other debt repurchases 2014from january 1 , 2004 to march 11 , 2004 , the company repurchased $ 36.2 million principal amount of its 5.0% ( 5.0 % ) notes for approximately $ 36.1 million in cash and made a $ 21.0 million voluntary prepayment of term loan a under its credit facilities . giving effect to the issuance of the 7.50% ( 7.50 % ) notes and the use of the net proceeds to redeem all of the outstanding 6.25% ( 6.25 % ) notes ; repurchases of $ 36.2 million principal amount of the 5.0% ( 5.0 % ) notes ; and a voluntary prepayment of $ 21.0 million of the term a loan under the credit facilities ; the company 2019s aggregate principal payments of long- term debt , including capital leases , for the next five years and thereafter are as follows ( in thousands ) : year ending december 31 .

Table:
2004 | $ 73684
2005 | 109435
2006 | 145107
2007 | 688077
2008 | 808043
thereafter | 1875760
total cash obligations | 3700106
accreted value of original issue discount of the ati 12.25% ( 12.25 % ) notes | -339601 ( 339601 )
accreted value of the related warrants | -44247 ( 44247 )
total | $ 3316258
atc mexico holding 2014in january 2004 , mr .
gearon exercised his previously disclosed right to require the company to purchase his 8.7% ( 8.7 % ) interest in atc mexico .
giving effect to the january 2004 exercise of options described below , the company owns an 88% ( 88 % ) interest in atc mexico , which is the subsidiary through which the company conducts its mexico operations .
the purchase price for mr .
gearon 2019s interest in atc mexico is subject to review by an independent financial advisor , and is payable in cash or shares of the company 2019s class a common stock , at the company 2019s option .
the company intends to pay the purchase price in shares of its class a common stock , and closing is expected to occur in the second quarter of 2004 .
in addition , the company expects that payment of a portion of the purchase price will be contingent upon atc mexico meeting certain performance objectives. .

Question: what is the expected percentage change in aggregate principal payments of long-term debt from 2004 to 2005?
Answer: 48.5%
Calculation: subtract(109435, 73684), divide(#0, 73684)