2004 2005 2006 2007 2008 2009 2010 2011 2012 $0 $200,000 $400,000 $600,000 $800,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $618,348 | 9,538 | 9,538 |
| 2006 | $470,269 | 2,844 | 2,844 |
| 2007 | $616,693 | 2,253 | 2,253 |
| 2008 | $529,631 | 2,402 | 2,402 |
| 2009 | $727,058 | 2,984 | 2,984 |
| 2010 | $264,425 | 1,568 | 1,568 |
| 2011 | $196,876 | 2,214 | 2,214 |
Note: Quantity represents Weight in kilograms
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