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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $497,983,522 | 951,218 | 951,218 |
| 2006 | $636,514,748 | 973,388 | 973,388 |
| 2007 | $650,551,229 | 824,250 | 824,250 |
| 2008 | $681,682,117 | 762,238 | 762,238 |
| 2009 | $620,221,637 | 707,863 | 707,863 |
| 2010 | $759,502,188 | 741,143 | 741,143 |
| 2011 | $875,370,803 | 554,962 | 554,962 |
Note: Quantity represents Weight in kilograms
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