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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $68,529,812 | 6,432,635 | 6,432,635 |
| 2006 | $105,131,796 | 6,494,833 | 6,494,833 |
| 2007 | $126,362,630 | 8,560,576 | 8,560,576 |
| 2008 | $128,654,433 | 7,288,924 | 7,288,924 |
| 2009 | $124,258,212 | 11,824,025 | 11,824,025 |
| 2010 | $189,075,564 | 19,506,058 | 19,506,058 |
| 2011 | $223,388,193 | 21,263,105 | 21,263,105 |
Note: Quantity represents Weight in kilograms
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