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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,179,390,736 | 794,213 | 794,213 |
| 2006 | $1,455,257,879 | 983,988 | 983,988 |
| 2007 | $1,455,032,603 | 1,042,473 | 1,042,473 |
| 2008 | $1,562,008,423 | 1,036,114 | 1,036,114 |
| 2009 | $1,458,894,170 | 1,008,109 | 1,008,109 |
| 2010 | $1,576,357,364 | 1,296,702 | 1,296,702 |
| 2011 | $1,976,612,155 | 1,542,375 | 1,542,375 |
Note: Quantity represents Weight in kilograms
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