2004 2005 2006 2007 2008 2010 2011 2012 $0 $200 $400 $600 $800 $1,000 $1,200
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,020 | 49 | 49 |
| 2006 | $550 | 8 | 8 |
| 2007 | $398 | 114 | 114 |
| 2008 | $72 | 10 | 10 |
| 2010 | $185 | 2 | 2 |
| 2011 | $301 | 0 | 0 |
Note: Quantity represents Weight in kilograms
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