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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $409,386,865 | 368,304,713 | 368,304,713 |
| 2006 | $452,756,012 | 357,607,565 | 357,607,565 |
| 2007 | $550,240,300 | 401,268,029 | 401,268,029 |
| 2008 | $447,612,914 | 263,896,727 | 263,896,727 |
| 2009 | $390,510,279 | 334,450,493 | 334,450,493 |
| 2010 | $447,178,509 | 295,082,626 | 295,082,626 |
| 2011 | $436,362,974 | 241,202,408 | 241,202,408 |
Note: Quantity represents Weight in kilograms
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