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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $387,510,892 | 140,472,024 | 140,472,024 |
| 2006 | $415,532,485 | 152,919,621 | 152,919,621 |
| 2007 | $421,144,099 | 145,709,362 | 145,709,362 |
| 2008 | $477,241,345 | 151,683,259 | 151,683,259 |
| 2009 | $416,156,266 | 129,252,212 | 129,252,212 |
| 2010 | $601,514,496 | 141,286,817 | 141,286,817 |
| 2011 | $744,020,480 | 149,672,555 | 149,672,555 |
Note: Quantity represents Weight in kilograms
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