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 | $258,656 | 25,303 | 25,303 |
| 2006 | $524,641 | 36,137 | 36,137 |
| 2007 | $809,451 | 117,410 | 117,410 |
| 2008 | $593,514 | 67,937 | 67,937 |
| 2009 | $541,079 | 73,636 | 73,636 |
| 2010 | $176,488 | 17,835 | 17,835 |
| 2011 | $141,694 | 12,729 | 12,729 |
Note: Quantity represents Weight in kilograms
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