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 | $22,841 | 5,661 | 5,661 |
| 2006 | $22,393 | 8,416 | 8,416 |
| 2007 | $20,392 | 5,130 | 5,130 |
| 2008 | $37,524 | 9,029 | 9,029 |
| 2009 | $28,476 | 7,939 | 7,939 |
| 2010 | $109,328 | 22,052 | 22,052 |
Note: Quantity represents Weight in kilograms
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