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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $427,006,957 | 53,138,587 | 53,138,587 |
| 2006 | $246,921,264 | 47,985,584 | 47,985,584 |
| 2007 | $361,448,945 | 72,535,609 | 72,535,609 |
| 2008 | $619,272,089 | 98,211,181 | 98,211,181 |
| 2009 | $630,087,309 | 122,840,643 | 122,840,643 |
| 2010 | $984,984,084 | 204,834,125 | 204,834,125 |
| 2011 | $1,764,164,037 | 313,619,771 | 313,619,771 |
Note: Quantity represents Weight in kilograms
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