american tower corporation and subsidiaries notes to consolidated financial statements 2014 ( continued ) 7 . financing arrangements outstanding amounts under the company 2019s long-term financing arrangements consisted of the following as of december 31 , ( in thousands ) : .

2006: american tower credit facility: 1000000
spectrasite credit facility: 725000
senior subordinated notes: 325075
senior notes net of discount and premium: 728507
convertible notes net of discount: 704596
notes payable and capital leases: 59838
total: 3543016
less current portion of other long-term obligations: -253907
long-term obligations: 3289109
2005: american tower credit facility: 793000
spectrasite credit facility: 700000
senior subordinated notes: 400000
senior subordinated discount notes net of discount and warrant valuation: 160252
senior notes net of discount and premium: 726754
convertible notes net of discount: 773058
notes payable and capital leases: 60365
total: 3613429
less current portion of other long-term obligations: -162153
long-term obligations: 3451276

credit facilities 2014in october 2005 , the company refinanced the two existing credit facilities of its principal operating subsidiaries . the company replaced the existing american tower $ 1.1 billion senior secured credit facility with a new $ 1.3 billion senior secured credit facility and replaced the existing spectrasite $ 900.0 million senior secured credit facility with a new $ 1.15 billion senior secured credit facility . in february 2007 , the company secured an additional $ 550.0 million under its credit facilities and drew down $ 250.0 million of the existing revolving loans under the american tower credit facility . ( see note 19. ) during the year ended december 31 , 2006 , the company drew down the remaining amount available under the delayed draw term loan component of the american tower credit facility and drew down $ 25.0 million of the delayed draw term loan component of the spectrasite credit facility to finance debt redemptions and repurchases . in addition , on october 27 , 2006 , the remaining $ 175.0 million undrawn portion of the delayed draw term loan component of the spectrasite facility was canceled pursuant to its terms . as of december 31 , 2006 , the american tower credit facility consists of the following : 2022 a $ 300.0 million revolving credit facility , against which approximately $ 17.8 million of undrawn letters of credit are outstanding at december 31 , 2006 , maturing on october 27 , 2010 ; 2022 a $ 750.0 million term loan a , which is fully drawn , maturing on october 27 , 2010 ; and 2022 a $ 250.0 million delayed draw term loan , which is fully drawn , maturing on october 27 , 2010 . the borrowers under the american tower credit facility include ati , american tower , l.p. , american tower international , inc . and american tower llc . the company and the borrowers 2019 restricted subsidiaries ( as defined in the loan agreement ) have guaranteed all of the loans under the credit facility . these loans are secured by liens on and security interests in substantially all assets of the borrowers and the restricted subsidiaries , with a carrying value aggregating approximately $ 4.5 billion at december 31 , 2006 . as of december 31 , 2006 , the spectrasite credit facility consists of the following : 2022 a $ 250.0 million revolving credit facility , against which approximately $ 4.6 million of undrawn letters of credit were outstanding at december 31 , 2006 , maturing on october 27 , 2010; .

Questions:
as of december 31, 2005, what was the amount from the total of outstanding amounts under the company 2019s long-term financing arrangements that was current?
and what was that total of outstanding amounts?
what percentage, then, did that current amount represent?
and what was this percentage representation in the next year, in 2006?

Answers:
162153
3613429
4%
7%