2004 2005 2006 2007 2008 2009 2010 2011 2012 $0 $5,000 $10,000 $15,000 $20,000 $25,000 $30,000 $35,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $7,376 | 4,633 | 4,633 |
| 2006 | $27,756 | 6,513 | 6,513 |
| 2007 | $5,327 | 2,483 | 2,483 |
| 2008 | $199 | 90 | 90 |
| 2009 | $2,198 | 259 | 259 |
| 2010 | $1,666 | 869 | 869 |
| 2011 | $1,117 | 543 | 543 |
Note: Quantity represents Weight in kilograms
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