35% ( 35 % ) due primarily to certain undistributed foreign earnings for which no u.s .
taxes are provided because such earnings are intended to be indefinitely reinvested outside the u.s .
as of september 29 , 2012 , the company had deferred tax assets arising from deductible temporary differences , tax losses , and tax credits of $ 4.0 billion , and deferred tax liabilities of $ 14.9 billion .
management believes it is more likely than not that forecasted income , including income that may be generated as a result of certain tax planning strategies , together with future reversals of existing taxable temporary differences , will be sufficient to fully recover the deferred tax assets .
the company will continue to evaluate the realizability of deferred tax assets quarterly by assessing the need for and amount of a valuation allowance .
the internal revenue service ( the 201cirs 201d ) has completed its field audit of the company 2019s federal income tax returns for the years 2004 through 2006 and proposed certain adjustments .
the company has contested certain of these adjustments through the irs appeals office .
the irs is currently examining the years 2007 through 2009 .
all irs audit issues for years prior to 2004 have been resolved .
in addition , the company is subject to audits by state , local , and foreign tax authorities .
management believes that adequate provisions have been made for any adjustments that may result from tax examinations .
however , the outcome of tax audits cannot be predicted with certainty .
if any issues addressed in the company 2019s tax audits are resolved in a manner not consistent with management 2019s expectations , the company could be required to adjust its provision for income taxes in the period such resolution occurs .
liquidity and capital resources the following table presents selected financial information and statistics as of and for the years ended september 29 , 2012 , september 24 , 2011 , and september 25 , 2010 ( in millions ) : .

2012
2011
2010
Cash, cash equivalents and marketable securities
$121,251
$81,570
$51,011
Accounts receivable, net
$10,930
$5,369
$5,510
Inventories
$791
$776
$1,051
Working capital
$19,111
$17,018
$20,956
Annual operating cash flow
$50,856
$37,529
$18,595

as of september 29 , 2012 , the company had $ 121.3 billion in cash , cash equivalents and marketable securities , an increase of $ 39.7 billion or 49% ( 49 % ) from september 24 , 2011 .
the principal components of this net increase was the cash generated by operating activities of $ 50.9 billion , which was partially offset by payments for acquisition of property , plant and equipment of $ 8.3 billion , payments for acquisition of intangible assets of $ 1.1 billion and payments of dividends and dividend equivalent rights of $ 2.5 billion .
the company 2019s marketable securities investment portfolio is invested primarily in highly-rated securities and its investment policy generally limits the amount of credit exposure to any one issuer .
the policy requires investments generally to be investment grade with the objective of minimizing the potential risk of principal loss .
as of september 29 , 2012 and september 24 , 2011 , $ 82.6 billion and $ 54.3 billion , respectively , of the company 2019s cash , cash equivalents and marketable securities were held by foreign subsidiaries and are generally based in u.s .
dollar-denominated holdings .
amounts held by foreign subsidiaries are generally subject to u.s .
income taxation on repatriation to the u.s .
the company believes its existing balances of cash , cash equivalents and marketable securities will be sufficient to satisfy its working capital needs , capital asset purchases , outstanding commitments , common stock repurchases , dividends on its common stock , and other liquidity requirements associated with its existing operations over the next 12 months .
capital assets the company 2019s capital expenditures were $ 10.3 billion during 2012 , consisting of $ 865 million for retail store facilities and $ 9.5 billion for other capital expenditures , including product tooling and manufacturing process .

Question: Analyse this data from a financial earnings document. what was the increase in annual operating cash flow between 2010 and 2012?
Choices:
-32261
32261.0
-18571
-18584.7
18595
Correct choice index: 1