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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $85,855 | 15,900 | 15,900 |
| 2006 | $61,522 | 11,800 | 11,800 |
| 2007 | $144,115 | 24,400 | 24,400 |
| 2008 | $300,592 | 60,300 | 60,300 |
| 2009 | $843,878 | 127,600 | 127,600 |
| 2010 | $1,387,774 | 194,200 | 194,200 |
| 2011 | $1,639,099 | 42,800 | 42,800 |
Note: Quantity represents Weight in kilograms
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