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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $6,244,636 | 106,760 | 106,760 |
| 2006 | $5,481,337 | 88,037 | 88,037 |
| 2007 | $5,869,506 | 64,146 | 64,146 |
| 2008 | $4,819,276 | 63,733 | 63,733 |
| 2009 | $2,666,990 | 39,354 | 39,354 |
| 2010 | $2,367,391 | 32,130 | 32,130 |
| 2011 | $2,303,895 | 26,324 | 26,324 |
Note: Quantity represents Weight in kilograms
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