2004 2005 2006 2007 2008 2009 2010 2011 $0 $50,000 $100,000 $150,000 $200,000 $250,000 $300,000 $350,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $23,904 | 5,819 | 5,819 |
| 2006 | $34,807 | 9,731 | 9,731 |
| 2007 | $62,319 | 10,675 | 10,675 |
| 2008 | $191,842 | 19,666 | 19,666 |
| 2009 | $311,332 | 31,991 | 31,991 |
| 2010 | $223,033 | 23,438 | 23,438 |
Note: Quantity represents Weight in kilograms
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