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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $225,891,288 | 2,152,257,155 | 2,152,257,155 |
| 2006 | $238,556,082 | 1,737,605,707 | 1,737,605,707 |
| 2007 | $289,295,850 | 1,560,937,282 | 1,560,937,282 |
| 2008 | $538,346,633 | 1,744,097,699 | 1,744,097,699 |
| 2009 | $134,257,170 | 830,275,722 | 830,275,722 |
Note: Quantity represents Weight in kilograms
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