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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $13,466,315 | 545,380,160 | 545,380,160 |
| 2006 | $14,087,707 | 545,849,999 | 545,849,999 |
| 2007 | $8,367,273 | 265,915,677 | 265,915,677 |
| 2008 | $16,272,296 | 257,117,046 | 257,117,046 |
| 2009 | $19,500,290 | 70,776,617 | 70,776,617 |
| 2010 | $35,775,529 | 2,134,958,702 | 2,134,958,702 |
| 2011 | $57,005,338 | 0 | 0 |
Note: Quantity represents Weight in kilograms
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