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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $18,317 | 1,143 | 1,143 |
| 2006 | $16,159 | 916 | 916 |
| 2007 | $31,883 | 3,115 | 3,115 |
| 2008 | $73,638 | 82,909 | 82,909 |
| 2009 | $13,504 | 8,093 | 8,093 |
| 2010 | $8,657 | 11,391 | 11,391 |
| 2011 | $20,927 | 17,160 | 17,160 |
Note: Quantity represents Weight in kilograms
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