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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $676,833,745 | 303,971,054 | 303,971,054 |
| 2006 | $961,351,321 | 341,439,201 | 341,439,201 |
| 2007 | $901,192,364 | 341,670,036 | 341,670,036 |
| 2008 | $1,178,052,033 | 361,012,252 | 361,012,252 |
| 2009 | $559,639,419 | 191,239,356 | 191,239,356 |
| 2010 | $800,665,293 | 320,262,802 | 320,262,802 |
Note: Quantity represents Weight in kilograms
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