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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $3,984 | 1,845 | 1,845 |
| 2006 | $1,099 | 294 | 294 |
| 2007 | $4,425 | 2,265 | 2,265 |
| 2008 | $6,584 | 2,180 | 2,180 |
| 2009 | $1,079 | 962 | 962 |
| 2010 | $54,920 | 96,723 | 96,723 |
| 2011 | $151,096 | 201,278 | 201,278 |
Note: Quantity represents Weight in kilograms
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