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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $250,638,130 | 299,014,468 | 299,014,468 |
| 2006 | $203,372,419 | 291,752,956 | 291,752,956 |
| 2007 | $299,347,660 | 409,365,263 | 409,365,263 |
| 2008 | $269,483,703 | 488,972,559 | 488,972,559 |
| 2009 | $241,305,394 | 309,150,838 | 309,150,838 |
| 2010 | $288,220,855 | 391,293,298 | 391,293,298 |
| 2011 | $294,262,511 | 394,053,023 | 394,053,023 |
Note: Quantity represents Weight in kilograms
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