2004 2005 2006 2007 2008 2009 2010 2011 2012 $0 $200,000 $400,000 $600,000 $800,000 $1,000,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $277,300 | 10,520 | 10,520 |
| 2006 | $906,800 | 34,299 | 34,299 |
| 2007 | $25,100 | 617 | 617 |
| 2008 | $21,400 | 497 | 497 |
| 2009 | $65,900 | 2,095 | 2,095 |
| 2010 | $340,700 | 12,458 | 12,458 |
| 2011 | $16,300 | 362 | 362 |
Note: Quantity represents Weight in kilograms
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