2004 2005 2006 2007 2008 2009 2010 2011 $0 $50,000 $100,000 $150,000 $200,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $63,976 | 6,438 | 6,438 |
| 2006 | $141,584 | 15,041 | 15,041 |
| 2007 | $161,948 | 19,545 | 19,545 |
| 2008 | $69,468 | 7,307 | 7,307 |
| 2009 | $95,219 | 5,096 | 5,096 |
| 2010 | $78,457 | 3,670 | 3,670 |
Note: Quantity represents Weight in kilograms
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