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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $116,000 | 201,800 | 201,800 |
| 2006 | $46,000 | 86,900 | 86,900 |
| 2007 | $50,000 | 75,400 | 75,400 |
| 2008 | $24,000 | 26,400 | 26,400 |
| 2009 | $69,000 | 42,900 | 42,900 |
| 2010 | $38,000 | 31,700 | 31,700 |
| 2011 | $29,000 | 22,900 | 22,900 |
Note: Quantity represents Weight in kilograms
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