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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $610,658,000 | 200,336 | 200,336 |
| 2006 | $1,004,200,000 | 276,139 | 276,139 |
| 2007 | $1,298,103,000 | 278,446 | 278,446 |
| 2008 | $1,029,816,000 | 196,757 | 196,757 |
| 2009 | $542,597,000 | 206,260 | 206,260 |
| 2010 | $1,154,978,562 | 342,511 | 342,511 |
| 2011 | $1,236,965,394 | 289,466 | 289,466 |
Note: Quantity represents Weight in kilograms
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