2004 2005 2006 2007 2008 2009 2010 2011 2012 $0 $50,000 $100,000 $150,000 $200,000 $250,000 $300,000 $350,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $217,372 | 19,647 | 19,647 |
| 2006 | $58,390 | 14,218 | 14,218 |
| 2007 | $169,486 | 24,993 | 24,993 |
| 2008 | $89,130 | 16,413 | 16,413 |
| 2009 | $138,095 | 22,429 | 22,429 |
| 2010 | $64,039 | 11,929 | 11,929 |
| 2011 | $286,458 | 61,071 | 61,071 |
Note: Quantity represents Weight in kilograms
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