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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,110,572,511 | 611,358,951 | 611,358,951 |
| 2006 | $1,102,060,961 | 603,218,090 | 603,218,090 |
| 2007 | $1,123,523,928 | 588,726,344 | 588,726,344 |
| 2008 | $1,146,466,581 | 594,763,093 | 594,763,093 |
| 2009 | $1,235,451,547 | 602,811,455 | 602,811,455 |
| 2010 | $1,464,390,368 | 588,895,626 | 588,895,626 |
| 2011 | $1,200,903,108 | 575,607,431 | 575,607,431 |
Note: Quantity represents Weight in kilograms
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