2004 2005 2006 2007 2008 2010 2011 $0 $5,000,000 $10,000,000 $15,000,000 $20,000,000 $25,000,000 $30,000,000 $35,000,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $10,011,116 | 6,521,000 | 6,521,000 |
| 2006 | $12,824,265 | 7,435,889 | 7,435,889 |
| 2007 | $17,638,279 | 9,991,271 | 9,991,271 |
| 2008 | $22,348,207 | 13,390,719 | 13,390,719 |
| 2010 | $28,479,082 | 13,548,330 | 13,548,330 |
Note: Quantity represents Weight in kilograms
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