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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $160,220,019 | 1,318,427,361 | 1,318,427,361 |
| 2006 | $155,289,299 | 1,340,551,152 | 1,340,551,152 |
| 2007 | $160,175,047 | 1,343,091,234 | 1,343,091,234 |
| 2008 | $225,972,381 | 1,296,743,387 | 1,296,743,387 |
| 2009 | $189,451,384 | 1,446,463,669 | 1,446,463,669 |
| 2010 | $143,746,443 | 1,331,451,636 | 1,331,451,636 |
| 2011 | $193,771,062 | 1,085,972,291 | 1,085,972,291 |
Note: Quantity represents Weight in kilograms
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