2004 2005 2006 2007 2008 2009 2010 2011 2012 $0 $2,000,000 $4,000,000 $6,000,000 $8,000,000 $10,000,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $2,935,189 | 239,598 | 239,598 |
| 2006 | $2,124,480 | 225,292 | 225,292 |
| 2007 | $4,687,583 | 341,906 | 341,906 |
| 2008 | $8,450,019 | 618,132 | 618,132 |
| 2009 | $4,741,834 | 243,262 | 243,262 |
| 2010 | $3,221,844 | 108,760 | 108,760 |
| 2011 | $4,442,631 | 172,234 | 172,234 |
Note: Quantity represents Weight in kilograms
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