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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,075 | 378 | 378 |
| 2006 | $2,525 | 1,842 | 1,842 |
| 2007 | $4,991 | 1,560 | 1,560 |
| 2008 | $39,642 | 23,171 | 23,171 |
| 2009 | $33,138 | 31,057 | 31,057 |
| 2010 | $60,061 | 53,250 | 53,250 |
| 2011 | $87,134 | 66,280 | 66,280 |
Note: Quantity represents Weight in kilograms
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