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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $795,062,217 | 112,082,680 | 112,082,680 |
| 2006 | $792,799,552 | 100,697,110 | 100,697,110 |
| 2007 | $448,641,371 | 62,367,200 | 62,367,200 |
| 2008 | $65,520,786 | 23,983,829 | 23,983,829 |
| 2009 | $19,419,754 | 10,327,225 | 10,327,225 |
| 2010 | $33,891,917 | 17,206,136 | 17,206,136 |
| 2011 | $38,210,364 | 16,014,850 | 16,014,850 |
Note: Quantity represents Weight in kilograms
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