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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $26,300 | 863 | 4,636 |
| 2006 | $19,900 | 893 | 2,261 |
| 2007 | $52,300 | 1,969 | 6,946 |
| 2008 | $87,500 | 4,509 | 18,138 |
| 2009 | $111,200 | 3,828 | 14,762 |
| 2010 | $187,400 | 6,151 | 23,491 |
| 2011 | $157,700 | 4,451 | 18,870 |
Note: Quantity represents Number of items
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