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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $347,434,000 | 523,909 | 523,909 |
| 2006 | $351,747,000 | 333,220 | 333,220 |
| 2007 | $480,990,000 | 311,586 | 311,586 |
| 2008 | $631,434,000 | 345,905 | 345,905 |
| 2009 | $689,708,000 | 603,586 | 603,586 |
| 2010 | $729,507,775 | 546,036 | 546,036 |
| 2011 | $883,013,197 | 727,948 | 727,948 |
Note: Quantity represents Weight in kilograms
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