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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $140 | 66 | 66 |
| 2006 | $34,996 | 17,506 | 17,506 |
| 2007 | $14,936 | 15,599 | 15,599 |
| 2008 | $7,961 | 7,778 | 7,778 |
| 2009 | $46,341 | 31,290 | 31,290 |
| 2010 | $20,944 | 23,651 | 23,651 |
| 2011 | $9,816 | 2,304 | 2,304 |
Note: Quantity represents Weight in kilograms
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