2004 2005 2006 2007 2008 2009 2010 2011 $0 $20,000 $40,000 $60,000 $80,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $65,890 | 2,107 | 2,107 |
| 2006 | $47,429 | 1,835 | 1,835 |
| 2007 | $33,060 | 2,207 | 2,207 |
| 2008 | $42,786 | 4,983 | 4,983 |
| 2009 | $15,344 | 399 | 399 |
| 2010 | $13,311 | 971 | 971 |
Note: Quantity represents Weight in kilograms
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