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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $293,760,000 | 2,477,750 | 2,477,750 |
| 2006 | $361,136,000 | 3,180,678 | 3,180,678 |
| 2007 | $260,477,000 | 2,792,965 | 2,792,965 |
| 2008 | $249,876,000 | 2,327,890 | 2,327,890 |
| 2009 | $204,610,000 | 2,148,632 | 2,148,632 |
| 2010 | $236,793,720 | 2,586,837 | 2,586,837 |
| 2011 | $262,576,643 | 2,883,598 | 2,883,598 |
Note: Quantity represents Weight in kilograms
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