2004 2005 2006 2007 2008 2009 2010 2011 2012 $0 $200,000 $400,000 $600,000 $800,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $469,103 | 173,350 | 173,350 |
| 2006 | $415,661 | 157,277 | 157,277 |
| 2007 | $415,217 | 147,168 | 147,168 |
| 2008 | $574,997 | 164,051 | 164,051 |
| 2009 | $438,660 | 127,969 | 127,969 |
| 2010 | $389,779 | 88,338 | 88,338 |
| 2011 | $675,567 | 155,997 | 155,997 |
Note: Quantity represents Weight in kilograms
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