2004 2005 2006 2007 2008 2009 2010 2011 2012 $0 $50,000 $100,000 $150,000 $200,000 $250,000 $300,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $239,483 | 4,783 | 4,783 |
| 2006 | $133,286 | 4,961 | 4,961 |
| 2007 | $174,086 | 4,768 | 4,768 |
| 2008 | $165,629 | 2,465 | 2,465 |
| 2009 | $126,890 | 997 | 997 |
| 2010 | $71,227 | 564 | 564 |
| 2011 | $41,383 | 6,380 | 6,380 |
Note: Quantity represents Weight in kilograms
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