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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $388 | 517 | 517 |
| 2006 | $2,168 | 1,515 | 1,515 |
| 2007 | $1,493 | 1,001 | 1,001 |
| 2008 | $17,235 | 28,072 | 28,072 |
| 2009 | $58,568 | 32,494 | 32,494 |
| 2010 | $55,495 | 37,258 | 37,258 |
| 2011 | $34,467 | 19,922 | 19,922 |
Note: Quantity represents Weight in kilograms
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