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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $4,268 | 20,000 | 20,000 |
| 2007 | $17,522 | 70,347 | 70,347 |
| 2008 | $24,187 | 102,000 | 102,000 |
| 2009 | $86,044 | 217,080 | 217,080 |
| 2010 | $92,686 | 340,000 | 340,000 |
| 2011 | $57,404 | 120,000 | 120,000 |
Note: Quantity represents Weight in kilograms
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