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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $5,788 | 587 | 587 |
| 2006 | $11,924 | 1,636 | 1,636 |
| 2007 | $15,428 | 2,046 | 2,046 |
| 2008 | $26,132 | 2,276 | 2,276 |
| 2009 | $9,511 | 1,237 | 1,237 |
| 2010 | $14,663 | 1,491 | 1,491 |
| 2011 | $19,066 | 3,404 | 3,404 |
Note: Quantity represents Weight in kilograms
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