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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $3,748 | 698 | 698 |
| 2006 | $4,644 | 934 | 934 |
| 2007 | $18,768 | 4,190 | 4,190 |
| 2008 | $35,862 | 8,103 | 8,103 |
| 2009 | $61,800 | 27,156 | 27,156 |
| 2010 | $96,445 | 51,251 | 51,251 |
| 2011 | $161,909 | 76,424 | 76,424 |
Note: Quantity represents Weight in kilograms
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