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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $568,739,329 | 142,636,596 | 142,636,596 |
| 2006 | $671,941,285 | 146,798,909 | 146,798,909 |
| 2007 | $822,690,320 | 164,920,779 | 164,920,779 |
| 2008 | $837,967,573 | 284,532,530 | 284,532,530 |
| 2009 | $743,766,859 | 140,811,640 | 140,811,640 |
| 2010 | $961,805,805 | 171,291,376 | 171,291,376 |
| 2011 | $1,025,191,398 | 180,257,372 | 180,257,372 |
Note: Quantity represents Weight in kilograms
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