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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,049 | 1,140 | 1,140 |
| 2006 | $4,820 | 3,742 | 3,742 |
| 2007 | $8,487 | 7,770 | 7,770 |
| 2008 | $9,477 | 18,986 | 18,986 |
| 2009 | $27,607 | 19,568 | 19,568 |
| 2010 | $7,122 | 8,135 | 8,135 |
| 2011 | $25,213 | 27,909 | 27,909 |
Note: Quantity represents Weight in kilograms
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