2004 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 |
| 2005 | $342,480 | 35,338 | 35,338 |
| 2006 | $486,745 | 38,915 | 38,915 |
| 2007 | $578,426 | 19,243 | 19,243 |
| 2008 | $370,469 | 26,552 | 26,552 |
| 2009 | $303,263 | 17,817 | 17,817 |
| 2010 | $172,313 | 5,074 | 5,074 |
| 2011 | $1,017,182 | 66,850 | 66,850 |
Note: Quantity represents Weight in kilograms
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