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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $17,447 | 4,525 | 4,525 |
| 2006 | $16,351 | 3,477 | 3,477 |
| 2007 | $20,563 | 4,238 | 4,238 |
| 2008 | $24,922 | 4,790 | 4,790 |
| 2009 | $23,169 | 4,660 | 4,660 |
| 2010 | $20,081 | 4,223 | 4,223 |
| 2011 | $18,880 | 4,407 | 4,407 |
Note: Quantity represents Weight in kilograms
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