cgmhi also has substantial borrowing arrangements consisting of facilities that cgmhi has been advised are available , but where no contractual lending obligation exists . these arrangements are reviewed on an ongoing basis to ensure flexibility in meeting cgmhi 2019s short-term requirements . the company issues both fixed and variable rate debt in a range of currencies . it uses derivative contracts , primarily interest rate swaps , to effectively convert a portion of its fixed rate debt to variable rate debt and variable rate debt to fixed rate debt . the maturity structure of the derivatives generally corresponds to the maturity structure of the debt being hedged . in addition , the company uses other derivative contracts to manage the foreign exchange impact of certain debt issuances . at december 31 , 2009 , the company 2019s overall weighted average interest rate for long-term debt was 3.51% ( 3.51 % ) on a contractual basis and 3.91% ( 3.91 % ) including the effects of derivative contracts . aggregate annual maturities of long-term debt obligations ( based on final maturity dates ) including trust preferred securities are as follows: .

Table:
in millions of dollars | 2010 | 2011 | 2012 | 2013 | 2014 | thereafter
citigroup parent company | $ 18030 | $ 20435 | $ 29706 | $ 17775 | $ 18916 | $ 92942
other citigroup subsidiaries | 18710 | 29316 | 17214 | 5177 | 12202 | 14675
citigroup global markets holdings inc . | 1315 | 1030 | 1686 | 388 | 522 | 8481
citigroup funding inc . | 9107 | 8875 | 20738 | 4792 | 3255 | 8732
total | $ 47162 | $ 59656 | $ 69344 | $ 28132 | $ 34895 | $ 124830
long-term debt at december 31 , 2009 and december 31 , 2008 includes $ 19345 million and $ 24060 million , respectively , of junior subordinated debt .
the company formed statutory business trusts under the laws of the state of delaware .
the trusts exist for the exclusive purposes of ( i ) issuing trust securities representing undivided beneficial interests in the assets of the trust ; ( ii ) investing the gross proceeds of the trust securities in junior subordinated deferrable interest debentures ( subordinated debentures ) of its parent ; and ( iii ) engaging in only those activities necessary or incidental thereto .
upon approval from the federal reserve , citigroup has the right to redeem these securities .
citigroup has contractually agreed not to redeem or purchase ( i ) the 6.50% ( 6.50 % ) enhanced trust preferred securities of citigroup capital xv before september 15 , 2056 , ( ii ) the 6.45% ( 6.45 % ) enhanced trust preferred securities of citigroup capital xvi before december 31 , 2046 , ( iii ) the 6.35% ( 6.35 % ) enhanced trust preferred securities of citigroup capital xvii before march 15 , 2057 , ( iv ) the 6.829% ( 6.829 % ) fixed rate/floating rate enhanced trust preferred securities of citigroup capital xviii before june 28 , 2047 , ( v ) the 7.250% ( 7.250 % ) enhanced trust preferred securities of citigroup capital xix before august 15 , 2047 , ( vi ) the 7.875% ( 7.875 % ) enhanced trust preferred securities of citigroup capital xx before december 15 , 2067 , and ( vii ) the 8.300% ( 8.300 % ) fixed rate/floating rate enhanced trust preferred securities of citigroup capital xxi before december 21 , 2067 , unless certain conditions , described in exhibit 4.03 to citigroup 2019s current report on form 8-k filed on september 18 , 2006 , in exhibit 4.02 to citigroup 2019s current report on form 8-k filed on november 28 , 2006 , in exhibit 4.02 to citigroup 2019s current report on form 8-k filed on march 8 , 2007 , in exhibit 4.02 to citigroup 2019s current report on form 8-k filed on july 2 , 2007 , in exhibit 4.02 to citigroup 2019s current report on form 8-k filed on august 17 , 2007 , in exhibit 4.2 to citigroup 2019s current report on form 8-k filed on november 27 , 2007 , and in exhibit 4.2 to citigroup 2019s current report on form 8-k filed on december 21 , 2007 , respectively , are met .
these agreements are for the benefit of the holders of citigroup 2019s 6.00% ( 6.00 % ) junior subordinated deferrable interest debentures due 2034 .
citigroup owns all of the voting securities of these subsidiary trusts .
these subsidiary trusts have no assets , operations , revenues or cash flows other than those related to the issuance , administration , and repayment of the subsidiary trusts and the subsidiary trusts 2019 common securities .
these subsidiary trusts 2019 obligations are fully and unconditionally guaranteed by citigroup. .

Question: what was the percent of the change in the aggregate annual maturities of long-term debt obligations for the citigroup parent company from 2010 to 2011
Answer: 13.3%
Calculation: subtract(20435, 18030), divide(#0, 18030)