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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,472 | 1,013 | 1,013 |
| 2006 | $36 | 1 | 1 |
| 2007 | $4,079 | 2,253 | 2,253 |
| 2008 | $58,164 | 30,609 | 30,609 |
| 2009 | $289,451 | 231,407 | 231,407 |
| 2010 | $454,488 | 375,534 | 375,534 |
| 2011 | $544,381 | 318,013 | 318,013 |
Note: Quantity represents Weight in kilograms
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