2004 2005 2006 2007 2008 2009 2010 2011 2012 $0 $1,000,000 $2,000,000 $3,000,000 $4,000,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,441,907 | 1,263,592 | 1,263,592 |
| 2006 | $1,628,494 | 1,269,028 | 1,269,028 |
| 2007 | $3,291,490 | 1,915,845 | 1,915,845 |
| 2008 | $3,575,139 | 2,011,859 | 2,011,859 |
| 2009 | $2,786,711 | 1,757,846 | 1,757,846 |
| 2010 | $2,609,528 | 2,705,246 | 2,705,246 |
| 2011 | $3,576,164 | 2,200,537 | 2,200,537 |
Note: Quantity represents Weight in kilograms
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