2004 2005 2006 2007 2008 2009 2010 2011 $0 $100,000 $200,000 $300,000 $400,000 $500,000 $600,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $259,993 | 99,325 | 99,325 |
| 2006 | $246,208 | 105,210 | 105,210 |
| 2007 | $471,071 | 131,526 | 131,526 |
| 2008 | $521,105 | 150,281 | 150,281 |
| 2009 | $319,721 | 115,238 | 115,238 |
| 2010 | $369,707 | 93,684 | 93,684 |
Note: Quantity represents Weight in kilograms
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