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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $404,363,998 | 107,242 | 107,242 |
| 2006 | $482,001,645 | 146,056 | 146,056 |
| 2007 | $678,786,856 | 176,497 | 176,497 |
| 2008 | $869,442,672 | 198,940 | 198,940 |
| 2009 | $1,021,758,579 | 197,605 | 197,605 |
| 2010 | $874,128,120 | 179,460 | 179,460 |
| 2011 | $1,057,652,984 | 221,813 | 221,813 |
Note: Quantity represents Weight in kilograms
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