2004 2005 2006 2007 2008 2009 2010 2011 2012 $0 $50,000 $100,000 $150,000 $200,000 $250,000 $300,000 $350,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $145,170 | 1,215,991 | 1,215,991 |
| 2006 | $313,893 | 24,307,916 | 24,307,916 |
| 2007 | $44,231 | 108,979 | 108,979 |
| 2008 | $38,642 | 100,180 | 100,180 |
| 2009 | $4,777 | 23,074 | 23,074 |
| 2010 | $10,022 | 103,500 | 103,500 |
| 2011 | $6,222 | 78,240 | 78,240 |
Note: Quantity represents Weight in kilograms
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