2004 2005 2006 2007 2008 2009 2010 2011 2012 $0 $50,000 $100,000 $150,000 $200,000 $250,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $39,840 | 19,022 | 19,022 |
| 2006 | $101,374 | 82,396 | 82,396 |
| 2007 | $125,734 | 129,006 | 129,006 |
| 2008 | $207,365 | 153,164 | 153,164 |
| 2009 | $53,005 | 57,149 | 57,149 |
| 2010 | $101,664 | 116,742 | 116,742 |
| 2011 | $93,616 | 106,965 | 106,965 |
Note: Quantity represents Weight in kilograms
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