2004 2005 2006 2007 2008 2009 2010 2011 2012 $0 $50,000 $100,000 $150,000 $200,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $3,985 | 8,226 | 8,226 |
| 2006 | $2,183 | 2,987 | 2,987 |
| 2007 | $1,920 | 2,821 | 2,821 |
| 2008 | $140,471 | 356,459 | 356,459 |
| 2009 | $8,804 | 11,906 | 11,906 |
| 2010 | $14,759 | 19,488 | 19,488 |
| 2011 | $3,375 | 3,129 | 3,129 |
Note: Quantity represents Weight in kilograms
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