2004 2005 2006 2007 2008 2009 2010 2011 2012 $0 $20,000 $40,000 $60,000 $80,000 $100,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $49,000 | 254,419 | 254,419 |
| 2006 | $36,000 | 186,920 | 186,920 |
| 2007 | $46,000 | 214,452 | 214,452 |
| 2008 | $45,000 | 159,418 | 159,418 |
| 2009 | $22,000 | 42,285 | 42,285 |
| 2010 | $22,000 | 77,480 | 77,480 |
| 2011 | $89,000 | 286,694 | 286,694 |
Note: Quantity represents Weight in kilograms
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