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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $14,315 | 15,575 | 15,575 |
| 2006 | $7,048 | 9,608 | 9,608 |
| 2007 | $4,467 | 7,689 | 7,689 |
| 2008 | $25,609 | 41,756 | 41,756 |
| 2009 | $40,413 | 57,184 | 57,184 |
| 2010 | $22,518 | 38,381 | 38,381 |
| 2011 | $16,451 | 38,847 | 38,847 |
Note: Quantity represents Weight in kilograms
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