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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $8,070 | 589 | 589 |
| 2006 | $16,260 | 1,300 | 1,300 |
| 2007 | $24,143 | 1,553 | 1,553 |
| 2008 | $21,947 | 1,785 | 1,785 |
| 2009 | $13,402 | 1,090 | 1,090 |
| 2010 | $16,184 | 2,021 | 2,021 |
| 2011 | $31,951 | 3,911 | 3,911 |
Note: Quantity represents Weight in kilograms
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