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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $2,931 | 5,485 | 5,485 |
| 2006 | $4,307 | 3,662 | 3,662 |
| 2007 | $448 | 176 | 176 |
| 2008 | $936 | 1,384 | 1,384 |
| 2009 | $59,830 | 181,628 | 181,628 |
| 2010 | $82,704 | 251,559 | 251,559 |
| 2011 | $57,425 | 164,408 | 164,408 |
Note: Quantity represents Weight in kilograms
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