2004 2005 2006 2007 2008 2009 2010 2011 2012 $0 $1,000,000 $2,000,000 $3,000,000 $4,000,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $3,566,133 | 4,120,000 | 4,120,000 |
| 2006 | $708,479 | 687,500 | 687,500 |
| 2007 | $147,876 | 101,739 | 101,739 |
| 2008 | $405,748 | 270,100 | 270,100 |
| 2009 | $950,633 | 1,346,200 | 1,346,200 |
| 2010 | $84,665 | 62,275 | 62,275 |
| 2011 | $2,401,844 | 1,878,217 | 1,878,217 |
Note: Quantity represents Weight in kilograms
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