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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $152,391,624 | 182,793,300 | 182,793,300 |
| 2006 | $391,510,725 | 454,280,650 | 454,280,650 |
| 2007 | $311,559,164 | 305,773,429 | 305,773,429 |
| 2008 | $384,233,196 | 393,813,353 | 393,813,353 |
| 2009 | $305,127,947 | 403,855,047 | 403,855,047 |
| 2010 | $418,881,916 | 603,484,099 | 603,484,099 |
| 2011 | $604,000,572 | 534,583,682 | 534,583,682 |
Note: Quantity represents Weight in kilograms
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