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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $237,045,451 | 1,195,331,903 | 1,195,331,903 |
| 2006 | $307,894,412 | 1,283,142,209 | 1,283,142,209 |
| 2007 | $427,470,939 | 1,464,377,060 | 1,464,377,060 |
| 2008 | $746,285,969 | 1,631,463,977 | 1,631,463,977 |
| 2009 | $281,489,534 | 1,241,088,203 | 1,241,088,203 |
| 2010 | $510,766,418 | 1,575,899,399 | 1,575,899,399 |
| 2011 | $693,047,506 | 1,668,051,481 | 1,668,051,481 |
Note: Quantity represents Weight in kilograms
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