2004 2005 2006 2007 2008 2009 2010 2011 2012 $0 $500,000 $1,000,000 $1,500,000 $2,000,000 $2,500,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $538,579 | 188,600 | 188,600 |
| 2006 | $983,288 | 281,598 | 281,598 |
| 2007 | $1,903,787 | 693,204 | 693,204 |
| 2008 | $554,717 | 121,803 | 121,803 |
| 2009 | $114,970 | 39,124 | 39,124 |
| 2010 | $59,941 | 13,492 | 13,492 |
| 2011 | $365,068 | 91,252 | 91,252 |
Note: Quantity represents Weight in kilograms
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