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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,069 | 172 | 172 |
| 2006 | $7,108 | 1,649 | 1,649 |
| 2007 | $25,693 | 4,992 | 4,992 |
| 2008 | $202,550 | 75,930 | 75,930 |
| 2009 | $133,616 | 29,692 | 29,692 |
| 2010 | $31,793 | 8,020 | 8,020 |
| 2011 | $6,945 | 1,584 | 1,584 |
Note: Quantity represents Weight in kilograms
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