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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $5,200 | 1,944 | 1,944 |
| 2006 | $1,000 | 1,149 | 1,149 |
| 2007 | $8,400 | 3,407 | 3,407 |
| 2008 | $29,900 | 7,269 | 7,269 |
| 2009 | $20,400 | 14,385 | 14,385 |
| 2010 | $55,000 | 35,321 | 35,321 |
| 2011 | $202,200 | 111,295 | 111,295 |
Note: Quantity represents Weight in kilograms
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