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 | $2,936,295 | 88,208 | 88,208 |
| 2006 | $3,157,558 | 694,991 | 694,991 |
| 2007 | $3,751,845 | 979,106 | 979,106 |
| 2008 | $2,974,623 | 230,317 | 230,317 |
| 2009 | $2,354,881 | 338,439 | 338,439 |
| 2010 | $7,049,672 | 603,451 | 603,451 |
| 2011 | $5,460,097 | 898,390 | 898,390 |
Note: Quantity represents Weight in kilograms
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