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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $939,517,000 | 112,855,522 | 112,855,522 |
| 2006 | $1,125,070,000 | 133,478,875 | 133,478,875 |
| 2007 | $1,412,264,000 | 150,164,670 | 150,164,670 |
| 2008 | $1,521,843,000 | 145,105,449 | 145,105,449 |
| 2009 | $1,211,552,000 | 118,133,445 | 118,133,445 |
| 2010 | $1,250,196,907 | 131,103,951 | 131,103,951 |
| 2011 | $1,460,770,044 | 142,914,461 | 142,914,461 |
Note: Quantity represents Weight in kilograms
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