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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $675,911,063 | 961,344,392 | 961,344,392 |
| 2006 | $865,975,576 | 1,206,683,869 | 1,206,683,869 |
| 2007 | $1,125,265,465 | 1,339,646,375 | 1,339,646,375 |
| 2008 | $915,574,352 | 899,230,464 | 899,230,464 |
| 2009 | $433,215,796 | 559,016,239 | 559,016,239 |
| 2010 | $613,777,446 | 765,854,465 | 765,854,465 |
| 2011 | $714,501,387 | 753,977,109 | 753,977,109 |
Note: Quantity represents Weight in kilograms
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