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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,211,825,192 | 8,307,580 | 0 |
| 2006 | $1,347,201,920 | 2,134,955 | 0 |
| 2007 | $362,473,606 | 526,883 | 0 |
| 2008 | $302,359,010 | 887,099 | 0 |
| 2009 | $208,653,686 | 6,706,408 | 4,284,888,370 |
| 2010 | $283,920,156 | 671,732 | 0 |
| 2011 | $227,012,332 | 513,135 | 0 |
Note: Quantity represents No Quantity
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