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 | $4,696,279 | 97,362 | 97,362 |
| 2006 | $6,303,233 | 107,960 | 107,960 |
| 2007 | $6,910,699 | 175,234 | 175,234 |
| 2008 | $7,809,969 | 78,670 | 78,670 |
| 2009 | $6,383,044 | 155,411 | 155,411 |
| 2010 | $6,493,409 | 164,670 | 164,670 |
| 2011 | $7,398,789 | 234,765 | 234,765 |
Note: Quantity represents Weight in kilograms
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