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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $2,014 | 1,730 | 1,730 |
| 2006 | $1,277 | 1,615 | 1,615 |
| 2007 | $2,848 | 2,987 | 2,987 |
| 2008 | $20,042 | 4,902 | 4,902 |
| 2009 | $8,629 | 5,184 | 5,184 |
| 2010 | $8,412 | 12,462 | 12,462 |
| 2011 | $2,509 | 1,634 | 1,634 |
Note: Quantity represents Weight in kilograms
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