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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $5,385 | 957 | 957 |
| 2006 | $26,223 | 3,947 | 3,947 |
| 2007 | $59,007 | 8,732 | 8,732 |
| 2008 | $64,976 | 9,859 | 9,859 |
| 2009 | $30,735 | 5,064 | 5,064 |
| 2010 | $36,968 | 5,926 | 5,926 |
| 2011 | $31,323 | 3,824 | 3,824 |
Note: Quantity represents Weight in kilograms
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