2004 2005 2006 2007 2008 2009 2010 2011 2012 $0 $5,000,000 $10,000,000 $15,000,000 $20,000,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $7,960,096 | 595,944 | 595,944 |
| 2006 | $11,213,740 | 766,679 | 766,679 |
| 2007 | $14,419,565 | 1,014,044 | 1,014,044 |
| 2008 | $12,363,271 | 416,307 | 416,307 |
| 2009 | $4,224,932 | 117,081 | 117,081 |
| 2010 | $4,719,718 | 147,484 | 147,484 |
| 2011 | $6,598,365 | 118,815 | 118,815 |
Note: Quantity represents Weight in kilograms
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