2004 2005 2006 2007 2008 2009 2010 2011 2012 $0 $200,000 $400,000 $600,000 $800,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $665,000 | 27,474 | 27,474 |
| 2006 | $260,800 | 9,825 | 9,825 |
| 2007 | $31,500 | 1,451 | 1,451 |
| 2008 | $76,400 | 2,598 | 2,598 |
| 2009 | $55,600 | 2,479 | 2,479 |
| 2010 | $140,800 | 3,304 | 3,304 |
| 2011 | $162,800 | 4,140 | 4,140 |
Note: Quantity represents Weight in kilograms
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