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 | $66,653 | 50,653 | 50,653 |
| 2006 | $209,779 | 181,606 | 181,606 |
| 2007 | $199,515 | 206,598 | 206,598 |
| 2008 | $287,245 | 341,659 | 341,659 |
| 2009 | $191,921 | 241,021 | 241,021 |
| 2010 | $154,156 | 305,771 | 305,771 |
| 2011 | $220,452 | 338,071 | 338,071 |
Note: Quantity represents Weight in kilograms
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