2004 2005 2006 2007 2008 2009 2010 2011 2012 $0 $200,000 $400,000 $600,000 $800,000 $1,000,000 $1,200,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $173,304 | 34,946 | 34,946 |
| 2006 | $157,619 | 57,201 | 57,201 |
| 2007 | $1,078,413 | 203,045 | 203,045 |
| 2008 | $103,860 | 23,127 | 23,127 |
| 2009 | $166,073 | 36,760 | 36,760 |
| 2010 | $137,514 | 29,157 | 29,157 |
| 2011 | $316,026 | 90,782 | 90,782 |
Note: Quantity represents Weight in kilograms
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