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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $47,118,823 | 474,913,012 | 474,913,012 |
| 2006 | $50,217,436 | 478,649,403 | 478,649,403 |
| 2007 | $53,811,623 | 492,969,698 | 492,969,698 |
| 2008 | $38,516,700 | 382,801,830 | 382,801,830 |
| 2009 | $18,984,943 | 200,936,147 | 200,936,147 |
| 2010 | $14,228,596 | 149,252,387 | 149,252,387 |
| 2011 | $13,907,872 | 120,396,421 | 120,396,421 |
Note: Quantity represents Weight in kilograms
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