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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $106,945,593 | 2,990,365,369 | 2,990,365,369 |
| 2006 | $72,523,075 | 1,559,980,505 | 1,559,980,505 |
| 2007 | $89,529,895 | 1,539,287,353 | 1,539,287,353 |
| 2008 | $165,933,733 | 2,558,778,941 | 2,558,778,941 |
| 2009 | $164,402,022 | 3,837,597,341 | 3,837,597,341 |
| 2010 | $120,037,315 | 2,770,890,098 | 2,770,890,098 |
| 2011 | $109,310,603 | 2,399,230,325 | 2,399,230,325 |
Note: Quantity represents Weight in kilograms
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