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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $18,190 | 2,807 | 2,807 |
| 2006 | $16,940 | 944 | 944 |
| 2007 | $31,115 | 1,693 | 1,693 |
| 2008 | $41,576 | 2,189 | 2,189 |
| 2009 | $39,880 | 2,001 | 2,001 |
| 2010 | $51,569 | 2,834 | 2,834 |
| 2011 | $40,862 | 2,697 | 2,697 |
Note: Quantity represents Weight in kilograms
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