2004 2005 2006 2007 2008 2009 2010 2011 $0 $200,000 $400,000 $600,000 $800,000 $1,000,000 $1,200,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $96,343 | 27,720 | 27,720 |
| 2006 | $146,713 | 54,229 | 54,229 |
| 2007 | $836,499 | 234,216 | 234,216 |
| 2008 | $1,074,320 | 327,388 | 327,388 |
| 2009 | $587,215 | 229,106 | 229,106 |
| 2010 | $787,593 | 261,118 | 261,118 |
Note: Quantity represents Weight in kilograms
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