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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $22,600 | 1,485 | 1,485 |
| 2006 | $20,500 | 4,050 | 4,050 |
| 2007 | $100 | 8 | 8 |
| 2008 | $39,600 | 1,300 | 1,300 |
| 2009 | $340,700 | 254,111 | 254,111 |
| 2010 | $351,400 | 170,997 | 170,997 |
| 2011 | $282,200 | 129,950 | 129,950 |
Note: Quantity represents Weight in kilograms
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