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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $229,248,247 | 1,123,496,528 | 1,123,496,528 |
| 2006 | $229,846,395 | 963,665,636 | 963,665,636 |
| 2007 | $391,170,573 | 1,173,655,432 | 1,173,655,432 |
| 2008 | $551,245,650 | 1,177,418,777 | 1,177,418,777 |
| 2009 | $373,055,732 | 1,309,377,808 | 1,309,377,808 |
| 2010 | $297,668,540 | 1,069,113,480 | 1,069,113,480 |
| 2011 | $344,391,796 | 862,403,765 | 862,403,765 |
Note: Quantity represents Weight in kilograms
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