2004 2005 2006 2007 2008 2009 2010 2011 2012 $0 $5,000,000 $10,000,000 $15,000,000 $20,000,000 $25,000,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $2,038,374 | 730,325 | 730,325 |
| 2006 | $3,582,118 | 1,060,465 | 1,060,465 |
| 2007 | $6,117,765 | 1,647,832 | 1,647,832 |
| 2008 | $8,158,737 | 2,089,000 | 2,089,000 |
| 2009 | $7,080,500 | 1,492,952 | 1,492,952 |
| 2010 | $12,811,736 | 3,984,166 | 3,984,166 |
| 2011 | $19,203,413 | 5,218,041 | 5,218,041 |
Note: Quantity represents Weight in kilograms
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