2005 2006 2007 2008 2009 2010 2011 2012 $0 $5,000 $10,000 $15,000 $20,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2006 | $17,623 | 16,348 | 16,348 |
| 2007 | $15,417 | 13,005 | 13,005 |
| 2008 | $5,606 | 2,321 | 2,321 |
| 2009 | $9,316 | 5,657 | 5,657 |
| 2010 | $6,124 | 4,769 | 4,769 |
| 2011 | $3,239 | 1,259 | 1,259 |
Note: Quantity represents Weight in kilograms
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