2004 2005 2006 2007 2008 2009 2010 2011 2012 $0 $2,000 $4,000 $6,000 $8,000 $10,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $2,900 | 2,107 | 2,107 |
| 2006 | $8,324 | 6,292 | 6,292 |
| 2007 | $930 | 291 | 291 |
| 2008 | $882 | 325 | 325 |
| 2009 | $405 | 100 | 100 |
| 2010 | $2,239 | 368 | 368 |
| 2011 | $1,593 | 530 | 530 |
Note: Quantity represents Weight in kilograms
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