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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $725,948,551 | 68,192,261 | 68,192,261 |
| 2006 | $862,986,376 | 90,774,678 | 90,774,678 |
| 2007 | $760,916,113 | 70,943,373 | 70,943,373 |
| 2008 | $606,457,632 | 74,191,484 | 74,191,484 |
| 2009 | $572,077,407 | 77,243,145 | 77,243,145 |
| 2010 | $698,833,640 | 89,319,597 | 89,319,597 |
| 2011 | $885,446,299 | 102,479,218 | 102,479,218 |
Note: Quantity represents Weight in kilograms
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