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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $801 | 1,293 | 1,293 |
| 2006 | $13,307 | 46,883 | 46,883 |
| 2007 | $3,584 | 3,230 | 3,230 |
| 2008 | $4,071 | 3,943 | 3,943 |
| 2009 | $2,019 | 1,655 | 1,655 |
| 2010 | $7,659 | 7,417 | 7,417 |
| 2011 | $11,662 | 10,247 | 10,247 |
Note: Quantity represents Weight in kilograms
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