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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $707,941,341 | 130,572,308 | 130,572,308 |
| 2006 | $686,901,734 | 18,960,233 | 18,960,233 |
| 2007 | $731,071,812 | 16,715,752 | 16,715,752 |
| 2008 | $680,970,433 | 22,274,146 | 22,274,146 |
| 2009 | $237,891,485 | 11,574,085 | 11,574,085 |
| 2010 | $483,967,798 | 21,818,046 | 21,818,046 |
| 2011 | $722,190,962 | 25,863,255 | 25,863,255 |
Note: Quantity represents Weight in kilograms
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