2004 2005 2006 2007 2008 2009 2010 2011 2012 $0 $20,000 $40,000 $60,000 $80,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $5,469 | 2,241 | 2,241 |
| 2006 | $7,504 | 3,548 | 3,548 |
| 2007 | $3,355 | 2,018 | 2,018 |
| 2008 | $10,749 | 1,800 | 1,800 |
| 2009 | $43,011 | 14,771 | 14,771 |
| 2010 | $33,770 | 13,646 | 13,646 |
| 2011 | $65,713 | 25,915 | 25,915 |
Note: Quantity represents Weight in kilograms
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