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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $317,104,020 | 2,186,529 | 2,186,529 |
| 2006 | $400,953,937 | 5,069,136 | 5,069,136 |
| 2007 | $341,958,134 | 2,445,466 | 2,445,466 |
| 2008 | $290,415,299 | 1,764,372 | 1,764,372 |
| 2009 | $224,946,387 | 1,682,764 | 1,682,764 |
| 2010 | $307,255,759 | 1,808,774 | 1,808,774 |
| 2011 | $439,657,436 | 2,726,737 | 2,726,737 |
Note: Quantity represents Weight in kilograms
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