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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $181 | 255 | 255 |
| 2006 | $1,497 | 3,091 | 3,091 |
| 2007 | $5,252 | 10,237 | 10,237 |
| 2008 | $8,184 | 12,494 | 12,494 |
| 2009 | $8,452 | 10,423 | 10,423 |
| 2010 | $19,083 | 12,294 | 12,294 |
| 2011 | $17,131 | 11,199 | 11,199 |
Note: Quantity represents Weight in kilograms
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