2004 2005 2006 2007 2008 2009 2010 2011 2012 $0 $50,000 $100,000 $150,000 $200,000 $250,000 $300,000 $350,000 $400,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $65,660 | 25,168 | 25,168 |
| 2006 | $25,557 | 10,970 | 10,970 |
| 2007 | $42,323 | 19,877 | 19,877 |
| 2008 | $84,286 | 18,152 | 18,152 |
| 2009 | $320,527 | 55,147 | 55,147 |
| 2010 | $23,740 | 4,655 | 4,655 |
| 2011 | $56,118 | 11,239 | 11,239 |
Note: Quantity represents Weight in kilograms
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