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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $5,300 | 1,625 | 1,625 |
| 2006 | $2,800 | 257 | 257 |
| 2007 | $58,900 | 5,934 | 5,934 |
| 2008 | $97,800 | 9,329 | 9,329 |
| 2009 | $329,400 | 29,566 | 29,566 |
| 2010 | $306,500 | 28,952 | 28,952 |
| 2011 | $336,200 | 32,868 | 32,868 |
Note: Quantity represents Weight in kilograms
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