2004 2005 2006 2007 2008 2009 2010 2011 2012 $0 $10,000 $20,000 $30,000 $40,000 $50,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $11,201 | 160 | 160 |
| 2006 | $13,736 | 254 | 254 |
| 2007 | $21,332 | 298 | 298 |
| 2008 | $42,011 | 237 | 237 |
| 2009 | $12,192 | 825 | 825 |
| 2010 | $3,937 | 280 | 280 |
| 2011 | $2,657 | 210 | 210 |
Note: Quantity represents Weight in kilograms
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