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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $362,194,000 | 910,928 | 910,928 |
| 2006 | $458,800,000 | 1,094,117 | 1,094,117 |
| 2007 | $442,071,000 | 970,807 | 970,807 |
| 2008 | $508,428,000 | 952,114 | 952,114 |
| 2009 | $423,361,000 | 801,124 | 801,124 |
| 2010 | $504,998,284 | 1,062,766 | 1,062,766 |
| 2011 | $634,564,550 | 1,337,667 | 1,337,667 |
Note: Quantity represents Weight in kilograms
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