2004 2005 2006 2007 2008 2009 2010 2011 2012 $0 $10,000,000 $20,000,000 $30,000,000 $40,000,000 $50,000,000 $60,000,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $10,632,445 | 198,940 | 0 |
| 2006 | $13,111,080 | 261,683 | 0 |
| 2007 | $34,403,178 | 330,225 | 0 |
| 2008 | $50,723,977 | 352,983 | 0 |
| 2009 | $33,426,860 | 239,197 | 0 |
| 2010 | $27,129,546 | 220,217 | 0 |
| 2011 | $19,880,930 | 168,583 | 0 |
Note: Quantity represents No Quantity
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