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## Consolidated Results 

<img src='content_image/267109.jpg'>

pp—percentage point(s) 

## Restatement of Previous Periods’ Financial Information 

In 2010, we determined that the cumulative effect of adjustments related to prior periods were material, in aggregate, if recorded in our 2010 Consolidated Financial Statements. These amounts related primarily to our accounting for deferred taxes and, to a lesser extent, to expense adjustments associated with vacant office space and rent for one of our office leases. We evaluated the effects of these errors on our prior periods’ Consolidated Financial Statements, indi- vidually and in the aggregate, in accordance with the materiality guidance provided by the SEC staff, as included in SAB Topics 1M and 1N, and concluded that no prior period is materially misstated. However, in accordance with the provisions of these SAB Topics, we restated our Consolidated Financial Statements, as of and for the years ended December 31, 2009 and 2008. Please see Note 2 in the Notes to our Consolidated Financial Statements for additional information concerning the restated financial information. 

As noted in How We Evaluate Our Business , we define free cash flow as cash provided by or used for operating activities less capital expen- ditures. Please refer to the discussion on page 65 for more detail. 

Because we’ve made several acquisitions in recent years, compar- ing our financial results from year to year is complex. To make it easier for investors to compare our results in different periods, we provide information on both revenue from acquisitions and organic revenue, which reflects our underlying business excluding revenue from acquisitions and the impact of foreign currency translations. We include an acquired operation as part of our revenue from acqui- sitions for 12 months after we complete the acquisition. After that, we include it as part of our organic revenue. 

Consolidated organic revenue (revenue excluding acquisitions and the impact of foreign currency translations) is considered a non- GAAP financial measure. The definition of organic revenue we use may not be the same as similarly titled measures used by other companies. Organic revenue should not be considered an alternative to any measure of performance as promulgated under GAAP. 

The table on the opposite page shows the periods in which we included each acquired operation in revenue from acquisitions. 

