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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,460 | 5,271 | 5,271 |
| 2006 | $255 | 22,175 | 22,175 |
| 2007 | $1,212 | 37,061 | 37,061 |
| 2008 | $3,677 | 1,734 | 1,734 |
| 2009 | $1,624 | 1,073 | 1,073 |
| 2010 | $3,944 | 4,741 | 4,741 |
| 2011 | $6,642 | 9,084 | 9,084 |
Note: Quantity represents Weight in kilograms
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