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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $437,881,533 | 1,101,206,838 | 1,101,206,838 |
| 2006 | $526,827,726 | 1,324,893,265 | 1,324,893,265 |
| 2007 | $655,424,292 | 1,113,004,069 | 1,113,004,069 |
| 2008 | $958,280,255 | 1,468,139,634 | 1,468,139,634 |
| 2009 | $511,504,146 | 596,738,361 | 596,738,361 |
| 2010 | $757,350,599 | 1,437,479,488 | 1,437,479,488 |
| 2011 | $1,209,922,491 | 1,708,153,136 | 1,708,153,136 |
Note: Quantity represents Weight in kilograms
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