2005 2006 2007 2008 2009 2010 2011 2012 $0 $200,000 $400,000 $600,000 $800,000 $1,000,000 $1,200,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2006 | $992,882 | 114,255 | 96 |
| 2007 | $647,423 | 94,749 | 0 |
| 2008 | $918,382 | 85,229 | 0 |
| 2009 | $545,708 | 51,338 | 0 |
| 2010 | $42,747 | 4,821 | 0 |
| 2011 | $40,424 | 21,656 | 0 |
Note: Quantity represents Number of items
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