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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $641 | 186 | 186 |
| 2006 | $15,653 | 1,405 | 1,405 |
| 2007 | $52,165 | 3,962 | 3,962 |
| 2008 | $16,271 | 2,615 | 2,615 |
| 2009 | $39,400 | 11,465 | 11,465 |
| 2010 | $32,139 | 17,856 | 17,856 |
| 2011 | $58,986 | 9,457 | 9,457 |
Note: Quantity represents Weight in kilograms
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