| Characteristic | Revenue (in million U.S. dollars) |
|---|---|
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
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Source
Release date
December 2011
Region
United States
Survey time period
2006 to 2010
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