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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $25,973 | 13,172 | 13,172 |
| 2006 | $14,557 | 14,176 | 14,176 |
| 2007 | $16,916 | 13,296 | 13,296 |
| 2008 | $13,196 | 12,428 | 12,428 |
| 2009 | $11,109 | 9,392 | 9,392 |
| 2010 | $12,427 | 31,190 | 31,190 |
| 2011 | $15,564 | 22,161 | 22,161 |
Note: Quantity represents Weight in kilograms
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