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 | $34,462 | 20,684 | 20,684 |
| 2006 | $36,641 | 19,349 | 19,349 |
| 2007 | $48,694 | 23,712 | 23,712 |
| 2008 | $75,015 | 51,516 | 51,516 |
| 2009 | $59,460 | 24,193 | 24,193 |
| 2010 | $108,171 | 30,130 | 30,130 |
| 2011 | $286,944 | 52,577 | 52,577 |
Note: Quantity represents Weight in kilograms
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