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## Reconciliation of GAAP revenues to operating revenues and GAAP expenses to operating expenses 

Year Ended December 31, 2012 

<img src='content_image/223851.jpg'>

Year Ended December 31, 2011 

<img src='content_image/223852.jpg'>

Year Ended December 31, 2010 

<img src='content_image/223853.jpg'>

(1) See definitions of operating revenues and operating expenses for the components of such adjustments. 

