what was the ratio of total operating expenses to net interest income in 2010?
corporate/other corporate/other includes global staff functions ( including finance , risk , human resources , legal and compliance ) and other corporate expense , global operations and technology , residual corporate treasury and corporate items . at december 31 , 2010 , this segment had approximately $ 272 billion of assets , consisting primarily of citi 2019s liquidity portfolio , including $ 87 billion of cash and deposits with banks. .

| In millions of dollars | 2010 | 2009 | 2008 |
| :--- | :--- | :--- | :--- |
| Net interest revenue | $1,059 | $(1,657) | $(2,671) |
| Non-interest revenue | 695 | (8,898) | 413 |
| Total revenues, net of interest expense | $1,754 | $(10,555) | $(2,258) |
| Total operating expenses | $1,953 | $1,418 | $511 |
| Provisions for loan losses and for benefits and claims | — | — | — |
| (Loss) from continuing operations before taxes | $(199) | $(11,973) | $(2,769) |
| Benefits for income taxes | (153) | (4,356) | (585) |
| (Loss) from continuing operations | $(46) | $(7,617) | $(2,184) |
| Income (loss) from discontinued operations, net of taxes | (68) | (445) | 4,002 |
| Net income (loss) before attribution of noncontrolling interests | $(114) | $(8,062) | $1,818 |
| Net (loss) attributable to noncontrolling interests | (48) | (2) | — |
| Net income (loss) | $(66) | $(8,060) | $1,818 |

2010 vs . 2009 revenues , net of interest expense increased primarily due to the absence of the loss on debt extinguishment related to the repayment of the $ 20 billion of tarp trust preferred securities and the exit from the loss-sharing agreement with the u.s . government , each in the fourth quarter of 2009 . revenues also increased due to gains on sales of afs securities , benefits from lower short- term interest rates and other improved treasury results during the current year . these increases were partially offset by the absence of the pretax gain related to citi 2019s public and private exchange offers in 2009 . operating expenses increased primarily due to various legal and related expenses , as well as other non-compensation expenses . 2009 vs . 2008 revenues , net of interest expense declined primarily due to the pretax loss on debt extinguishment related to the repayment of tarp and the exit from the loss-sharing agreement with the u.s . government . revenues also declined due to the absence of the 2008 sale of citigroup global services limited recorded in operations and technology . these declines were partially offset by a pretax gain related to the exchange offers , revenues and higher intersegment eliminations . operating expenses increased primarily due to intersegment eliminations and increases in compensation , partially offset by lower repositioning reserves. .

total_operating_expenses = 1953
net_interest_income = 1059
ratio = total_operating_expenses / net_interest_income
answer = ratio