| Year | Value in billion U.S. dollars |
|---|---|
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
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Region
United States
Survey time period
1990 to 2010
Supplementary notes
Note: 14,570 represents $14,570,000,000,000
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