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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,271,069,883 | 8,312,953 | 8,312,953 |
| 2006 | $1,528,556,757 | 9,996,949 | 9,996,949 |
| 2007 | $1,711,573,680 | 0 | 0 |
| 2008 | $1,499,267,806 | 7,797,877 | 7,797,877 |
| 2009 | $1,357,099,428 | 7,443,167 | 7,443,167 |
| 2010 | $1,448,847,515 | 7,283,102 | 7,283,102 |
| 2011 | $1,282,249,947 | 6,197,722 | 6,197,722 |
Note: Quantity represents Weight in kilograms
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