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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $488,327,278 | 420,873,561 | 0 |
| 2006 | $589,235,595 | 769,419,335 | 0 |
| 2007 | $587,801,965 | 593,483,740 | 0 |
| 2008 | $1,098,297,100 | 725,297,530 | 0 |
| 2009 | $942,548,169 | 708,935,436 | 0 |
| 2010 | $1,089,502,243 | 825,625,962 | 0 |
| 2011 | $1,459,676,359 | 909,296,760 | 3,024 |
Note: Quantity represents No Quantity
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