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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $358,000 | 50,800 | 50,800 |
| 2006 | $537,000 | 53,900 | 53,900 |
| 2007 | $1,269,000 | 233,000 | 233,000 |
| 2008 | $727,000 | 119,000 | 119,000 |
| 2009 | $430,000 | 37,000 | 37,000 |
| 2010 | $439,000 | 37,600 | 37,600 |
| 2011 | $265,000 | 28,400 | 28,400 |
Note: Quantity represents Weight in kilograms
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