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 | $83,880 | 83,600 | 83,600 |
| 2006 | $52,800 | 58,632 | 58,632 |
| 2007 | $42,095 | 43,578 | 43,578 |
| 2008 | $68,790 | 48,928 | 48,928 |
| 2009 | $38,907 | 33,977 | 33,977 |
| 2010 | $66,512 | 66,434 | 66,434 |
| 2011 | $63,325 | 40,555 | 40,555 |
Note: Quantity represents Weight in kilograms
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