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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $7,989 | 531 | 531 |
| 2006 | $7,067 | 354 | 354 |
| 2007 | $9,354 | 6,547 | 6,547 |
| 2008 | $22,425 | 9,049 | 9,049 |
| 2009 | $37,095 | 9,471 | 9,471 |
| 2010 | $37,066 | 15,710 | 15,710 |
| 2011 | $51,627 | 14,245 | 14,245 |
Note: Quantity represents Weight in kilograms
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