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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,630,242,000 | 451,874,473 | 451,874,473 |
| 2006 | $1,652,897,000 | 514,933,934 | 514,933,934 |
| 2007 | $2,042,940,000 | 563,174,326 | 563,174,326 |
| 2008 | $2,468,968,000 | 589,988,559 | 589,988,559 |
| 2009 | $1,309,809,000 | 301,607,563 | 301,607,563 |
| 2010 | $1,531,444,731 | 406,122,154 | 406,122,154 |
| 2011 | $2,157,096,687 | 497,310,562 | 497,310,562 |
Note: Quantity represents Weight in kilograms
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