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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $24,000 | 42,600 | 42,600 |
| 2006 | $11,000 | 17,900 | 17,900 |
| 2007 | $66,000 | 489,000 | 489,000 |
| 2008 | $92,000 | 545,600 | 545,600 |
| 2009 | $66,000 | 142,700 | 142,700 |
| 2010 | $23,000 | 32,400 | 32,400 |
| 2011 | $69,000 | 155,300 | 155,300 |
Note: Quantity represents Weight in kilograms
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