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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $76,000 | 114,000 | 267 |
| 2006 | $42,563 | 101,998 | 150 |
| 2007 | $7,626 | 7,218 | 0 |
| 2008 | $30,379 | 31,515 | 102 |
| 2009 | $175,905 | 156,101 | 507 |
| 2010 | $157,544 | 152,226 | 440 |
| 2011 | $165,427 | 146,833 | 293 |
Note: Quantity represents Volume in cubic meters
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