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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $7,270 | 1,843 | 1,843 |
| 2006 | $6,079 | 612 | 612 |
| 2007 | $55,528 | 3,969 | 3,969 |
| 2008 | $49,095 | 10,257 | 10,257 |
| 2009 | $44,933 | 14,063 | 14,063 |
| 2010 | $27,044 | 13,169 | 13,169 |
| 2011 | $1,228 | 764 | 764 |
Note: Quantity represents Weight in kilograms
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