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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $5,311 | 948 | 948 |
| 2006 | $11,250 | 2,268 | 2,268 |
| 2007 | $12,638 | 2,457 | 2,457 |
| 2008 | $11,518 | 1,968 | 1,968 |
| 2009 | $12,220 | 2,326 | 2,326 |
| 2010 | $11,170 | 1,867 | 1,867 |
| 2011 | $15,138 | 2,690 | 2,690 |
Note: Quantity represents Weight in kilograms
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