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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $29,600 | 2,745 | 2,745 |
| 2006 | $5,700 | 989 | 989 |
| 2007 | $29,500 | 1,698 | 1,698 |
| 2008 | $47,300 | 6,006 | 6,006 |
| 2009 | $13,400 | 601 | 601 |
| 2010 | $233,900 | 49,757 | 49,757 |
| 2011 | $696,900 | 86,794 | 86,794 |
Note: Quantity represents Weight in kilograms
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