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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,321 | 257 | 257 |
| 2006 | $199 | 1,175 | 1,175 |
| 2007 | $379 | 1,110 | 1,110 |
| 2008 | $2,797 | 915 | 915 |
| 2009 | $214,132 | 251,717 | 251,717 |
| 2010 | $374,747 | 483,026 | 483,026 |
| 2011 | $347,588 | 378,796 | 378,796 |
Note: Quantity represents Weight in kilograms
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