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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $479,815,521 | 317,285,155 | 317,285,155 |
| 2006 | $575,683,026 | 384,226,249 | 384,226,249 |
| 2007 | $610,864,559 | 389,091,501 | 389,091,501 |
| 2008 | $686,678,787 | 335,419,210 | 335,419,210 |
| 2009 | $489,307,876 | 346,432,435 | 346,432,435 |
| 2010 | $557,643,773 | 338,352,217 | 338,352,217 |
| 2011 | $723,422,750 | 357,648,349 | 357,648,349 |
Note: Quantity represents Weight in kilograms
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