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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $481 | 613 | 613 |
| 2006 | $1,643 | 3,928 | 3,928 |
| 2007 | $17,297 | 44,575 | 44,575 |
| 2008 | $44,176 | 71,490 | 71,490 |
| 2009 | $30,560 | 63,563 | 63,563 |
| 2010 | $1,256 | 2,279 | 2,279 |
| 2011 | $3,904 | 2,475 | 2,475 |
Note: Quantity represents Weight in kilograms
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