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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $7,000 | 6,300 | 6,300 |
| 2006 | $12,000 | 7,700 | 7,700 |
| 2007 | $34,000 | 151,700 | 151,700 |
| 2008 | $88,000 | 385,000 | 385,000 |
| 2009 | $49,000 | 216,600 | 216,600 |
| 2010 | $53,000 | 269,900 | 269,900 |
| 2011 | $134,000 | 285,600 | 285,600 |
Note: Quantity represents Weight in kilograms
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