Read the following texts and table with financial data from an S&P 500 earnings report carefully.Based on the question-answer history (if provided), answer the last question. The answer may require mathematical calculation based on the data provided.


secured financing is primarily conducted through citi 2019s broker-dealer subsidiaries to facilitate customer matched-book activity and to efficiently fund a portion of the trading inventory . secured financing appears as a liability on citi 2019s consolidated balance sheet ( 201csecurities loaned or sold under agreements to repurchase 201d ) . as of december 31 , 2010 , secured financing was $ 189.6 billion and averaged approximately $ 207 billion during the quarter ended december 31 , 2010 . secured financing at december 31 , 2010 increased by $ 35 billion from $ 154.3 billion at december 31 , 2009 . during the same period , reverse repos and securities borrowing increased by $ 25 billion . the majority of secured financing is collateralized by highly liquid government , government-backed and government agency securities . this collateral comes primarily from citi 2019s trading assets and its secured lending , and is part of citi 2019s client matched-book activity given that citi both borrows and lends similar asset types on a secured basis . the minority of secured financing is collateralized by less liquid collateral , and supports both citi 2019s trading assets as well as the business of secured lending to customers , which is also part of citi 2019s client matched-book activity . the less liquid secured borrowing is carefully calibrated by asset quality , tenor and counterparty exposure , including those that might be sensitive to ratings stresses , in order to increase the reliability of the funding . citi believes there are several potential mitigants available to it in the event of stress on the secured financing markets for less liquid collateral . citi 2019s significant liquidity resources in its non-bank entities as of december 31 , 2010 , supplemented by collateralized liquidity transfers between entities , provide a cushion . within the matched-book activity , the secured lending positions , which are carefully managed in terms of collateral and tenor , could be unwound to provide additional liquidity under stress . citi also has excess funding capacity for less liquid collateral with existing counterparties that can be accessed during potential dislocation . in addition , citi has the ability to adjust the size of select trading books to provide further mitigation . at december 31 , 2010 , commercial paper outstanding for citigroup 2019s non- bank entities and bank subsidiaries , respectively , was as follows : in billions of dollars non-bank bank ( 1 ) citigroup . <table class='wikitable'><tr><td>1</td><td>in billions of dollars</td><td>non-bank</td><td>bank</td><td>-1 ( 1 )</td><td>total citigroup</td></tr><tr><td>2</td><td>commercial paper</td><td>$ 9.7</td><td>$ 15.0</td><td>-</td><td>$ 24.7</td></tr></table> ( 1 ) includes $ 15 billion of commercial paper related to vies consolidated effective january 1 , 2010 with the adoption of sfas 166/167 . other short-term borrowings of approximately $ 54 billion ( as set forth in the secured financing and short-term borrowings table above ) include $ 42.4 billion of borrowings from banks and other market participants , which includes borrowings from the federal home loan banks . this represented a decrease of approximately $ 11 billion as compared to year-end 2009 . the average balance of borrowings from banks and other market participants for the quarter ended december 31 , 2010 was approximately $ 43 billion . other short-term borrowings also include $ 11.7 billion of broker borrowings at december 31 , 2010 , which averaged approximately $ 13 billion for the quarter ended december 31 , 2010 . see notes 12 and 19 to the consolidated financial statements for further information on citigroup 2019s and its affiliates 2019 outstanding long-term debt and short-term borrowings . liquidity transfer between entities liquidity is generally transferable within the non-bank , subject to regulatory restrictions ( if any ) and standard legal terms . similarly , the non-bank can generally transfer excess liquidity into citi 2019s bank subsidiaries , such as citibank , n.a . in addition , citigroup 2019s bank subsidiaries , including citibank , n.a. , can lend to the citigroup parent and broker-dealer in accordance with section 23a of the federal reserve act . as of december 31 , 2010 , the amount available for lending under section 23a was approximately $ 26.6 billion , provided the funds are collateralized appropriately. .
Question: as of december 31, 2010, what percentage of commercial paper outstanding was due to non-bank subsidiaries?

0.39271