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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $17,648 | 16,434 | 16,434 |
| 2006 | $60,512 | 46,248 | 46,248 |
| 2007 | $51,498 | 57,385 | 57,385 |
| 2008 | $64,662 | 27,243 | 27,243 |
| 2009 | $51,173 | 37,070 | 37,070 |
| 2010 | $1,287 | 916 | 916 |
| 2011 | $231 | 162 | 162 |
Note: Quantity represents Weight in kilograms
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