2004 2005 2006 2007 2008 2009 2010 2011 2012 $0 $2,000,000 $4,000,000 $6,000,000 $8,000,000 $10,000,000 $12,000,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $7,875,073 | 16,421,329 | 16,421,329 |
| 2006 | $10,144,458 | 16,882,570 | 16,882,570 |
| 2007 | $6,142,344 | 8,656,780 | 8,656,780 |
| 2008 | $7,633,585 | 8,885,592 | 8,885,592 |
| 2009 | $7,444,983 | 8,410,228 | 8,410,228 |
| 2010 | $8,833,126 | 7,226,213 | 7,226,213 |
| 2011 | $10,275,914 | 8,623,278 | 8,623,278 |
Note: Quantity represents Weight in kilograms
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