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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $329,980,467 | 225,801,193 | 225,801,193 |
| 2006 | $393,398,796 | 255,683,431 | 255,683,431 |
| 2007 | $489,671,330 | 342,189,136 | 342,189,136 |
| 2008 | $615,574,415 | 353,767,768 | 353,767,768 |
| 2009 | $572,771,288 | 324,701,756 | 324,701,756 |
| 2010 | $743,650,238 | 363,074,066 | 363,074,066 |
| 2011 | $840,556,795 | 357,970,144 | 357,970,144 |
Note: Quantity represents Weight in kilograms
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