2004 2005 2006 2007 2008 2009 2010 2011 2012 $0 $2,000,000 $4,000,000 $6,000,000 $8,000,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $978,892 | 184,205 | 184,205 |
| 2006 | $697,201 | 152,116 | 152,116 |
| 2007 | $2,339,275 | 2,224,140 | 2,224,140 |
| 2008 | $5,181,196 | 7,336,133 | 7,336,133 |
| 2009 | $4,979,557 | 5,610,985 | 5,610,985 |
| 2010 | $5,275,610 | 8,057,106 | 8,057,106 |
| 2011 | $6,816,284 | 5,922,697 | 5,922,697 |
Note: Quantity represents Weight in kilograms
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