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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $323,930,283 | 1,038,980,616 | 1,038,980,616 |
| 2006 | $479,608,528 | 1,425,394,858 | 1,425,394,858 |
| 2007 | $487,772,450 | 1,289,809,542 | 1,289,809,542 |
| 2008 | $517,949,921 | 879,475,578 | 879,475,578 |
| 2009 | $110,893,544 | 292,995,110 | 292,995,110 |
| 2010 | $169,196,518 | 354,376,128 | 354,376,128 |
| 2011 | $186,126,768 | 321,560,835 | 321,560,835 |
Note: Quantity represents Weight in kilograms
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