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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $13,723 | 25,595 | 25,595 |
| 2006 | $3,860 | 386 | 386 |
| 2007 | $1,688 | 101 | 101 |
| 2008 | $39,500 | 38,550 | 38,550 |
| 2009 | $156,766 | 171,443 | 171,443 |
| 2010 | $315,852 | 310,974 | 310,974 |
| 2011 | $161,415 | 148,006 | 148,006 |
Note: Quantity represents Weight in kilograms
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