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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $26,557 | 8,076 | 8,076 |
| 2006 | $49,521 | 5,282 | 5,282 |
| 2007 | $146,639 | 6,308 | 6,308 |
| 2008 | $167,301 | 10,183 | 10,183 |
| 2009 | $129,312 | 10,127 | 10,127 |
| 2010 | $92,455 | 14,788 | 14,788 |
| 2011 | $83,536 | 20,661 | 20,661 |
Note: Quantity represents Weight in kilograms
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