2004 2005 2007 2009 2010 2011 2012 $0 $20,000,000 $40,000,000 $60,000,000 $80,000,000 $100,000,000 $120,000,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $72,054,614 | 21,344,835 | 0 |
| 2007 | $96,308,482 | 19,235,360 | 0 |
| 2009 | $63,941,165 | 10,207,110 | 0 |
| 2010 | $74,017,546 | 11,576,000 | 0 |
| 2011 | $16,671,132 | 2,790,000 | 7,600 |
Note: Quantity represents No Quantity
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