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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $12,986,872 | 11,392,580 | 11,392,580 |
| 2006 | $23,670,689 | 1,805,697,088 | 1,805,697,088 |
| 2007 | $20,274,060 | 24,621,590 | 24,621,590 |
| 2008 | $19,042,318 | 13,100,296 | 13,100,296 |
| 2009 | $90,841,405 | 71,075,690 | 71,075,690 |
| 2010 | $58,678,315 | 139,311,143 | 139,311,143 |
| 2011 | $88,144,061 | 104,460,023 | 104,460,023 |
Note: Quantity represents Weight in kilograms
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