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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $16,863 | 2,777 | 2,777 |
| 2006 | $22,299 | 2,873 | 2,873 |
| 2007 | $20,469 | 1,772 | 1,772 |
| 2008 | $16,226 | 1,813 | 1,813 |
| 2009 | $22,012 | 2,901 | 2,901 |
| 2010 | $28,790 | 2,835 | 2,835 |
| 2011 | $23,912 | 1,910 | 1,910 |
Note: Quantity represents Weight in kilograms
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