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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $483,566,694 | 18,837,814 | 18,837,814 |
| 2006 | $359,775,198 | 6,031,873 | 6,031,873 |
| 2007 | $401,038,483 | 0 | 0 |
| 2008 | $517,908,654 | 0 | 0 |
| 2009 | $668,696,992 | 0 | 0 |
| 2010 | $539,346,545 | 0 | 0 |
| 2011 | $617,830,690 | 0 | 0 |
Note: Quantity represents Weight in kilograms
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