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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,315 | 1,512 | 1,512 |
| 2006 | $5,488 | 5,257 | 5,257 |
| 2007 | $7,893 | 7,425 | 7,425 |
| 2008 | $10,447 | 14,276 | 14,276 |
| 2009 | $13,936 | 13,473 | 13,473 |
| 2010 | $2,957 | 2,079 | 2,079 |
| 2011 | $11,830 | 8,823 | 8,823 |
Note: Quantity represents Weight in kilograms
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