2004 2005 2006 2007 2008 2009 2010 2011 $0 $20,000 $40,000 $60,000 $80,000 $100,000 $120,000 $140,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $12,644 | 8,136 | 8,136 |
| 2006 | $11,303 | 1,951 | 1,951 |
| 2007 | $15,876 | 1,814 | 1,814 |
| 2008 | $16,494 | 261 | 261 |
| 2009 | $32,047 | 1,508 | 1,508 |
| 2010 | $120,988 | 1,454 | 1,454 |
Note: Quantity represents Weight in kilograms
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