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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $7,966 | 1,109 | 1,109 |
| 2006 | $12,418 | 1,737 | 1,737 |
| 2007 | $13,436 | 2,199 | 2,199 |
| 2008 | $23,955 | 3,059 | 3,059 |
| 2009 | $14,835 | 2,978 | 2,978 |
| 2010 | $14,519 | 2,045 | 2,045 |
| 2011 | $1,532 | 156 | 156 |
Note: Quantity represents Weight in kilograms
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