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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $617,418,353 | 2,626,665 | 2,626,665 |
| 2006 | $535,218,317 | 1,829,667 | 1,829,667 |
| 2007 | $345,477,794 | 2,293,956 | 2,293,956 |
| 2008 | $331,873,811 | 2,557,509 | 2,557,509 |
| 2009 | $237,930,187 | 2,298,355 | 2,298,355 |
| 2010 | $260,197,970 | 2,266,089 | 2,266,089 |
| 2011 | $288,392,665 | 1,934,457 | 1,934,457 |
Note: Quantity represents Weight in kilograms
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