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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $654,971,978 | 2,895,746 | 2,895,746 |
| 2006 | $648,484,408 | 3,217,006 | 3,217,006 |
| 2007 | $961,664,493 | 3,280,911 | 3,280,911 |
| 2008 | $1,379,450,185 | 3,403,246 | 3,403,246 |
| 2009 | $1,613,522,287 | 3,607,605 | 3,607,605 |
| 2010 | $1,730,466,580 | 4,504,408 | 4,504,408 |
| 2011 | $1,786,371,764 | 6,194,798 | 6,194,798 |
Note: Quantity represents Weight in kilograms
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