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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $726 | 1,000 | 1,000 |
| 2006 | $2,051 | 1,600 | 1,600 |
| 2007 | $14,428 | 16,194 | 16,194 |
| 2008 | $46,479 | 33,151 | 33,151 |
| 2009 | $18,796 | 11,215 | 11,215 |
| 2010 | $1,039 | 933 | 933 |
| 2011 | $6,806 | 12,916 | 12,916 |
Note: Quantity represents Weight in kilograms
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