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While organic revenue and acquisitions had the most significant impact on revenue in 2010, we also enjoyed a benefit from foreign currency translations, primarily in the first half of the year. The Australian dollar and the Canadian dollar were the primary con- tributors to the currency benefit, partially offset by the Euro and, to a lesser extent, the British pound. In contrast, currency translations reduced revenue by nearly $9.0 million in 2009. 

Organic revenue growth improved each quarter in 2010. 

## Quarterly Organic Revenue Growth 

## International Revenue 

Revenue from international operations increased as a percentage of total revenue in 2010 and 2009. Our non-U.S. revenue increased to 28.3% of consolidated revenue in 2010, compared with 27.0% in 2009 and 24.2% in 2008. Several of our recent acquisitions have operations outside the United States. The majority of our interna- tional revenue is from Europe, Australia, and Canada. Acquisitions contributed $17.0 million to international revenue in 2010 and $23.4 million in 2009. 

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