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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $715,093,839 | 444,666,198 | 444,666,198 |
| 2006 | $834,564,101 | 631,157,452 | 631,157,452 |
| 2007 | $1,165,128,582 | 272,127,703 | 272,127,703 |
| 2008 | $1,050,870,462 | 261,614,251 | 261,614,251 |
| 2009 | $753,432,491 | 157,677,511 | 157,677,511 |
| 2010 | $842,479,896 | 198,243,525 | 198,243,525 |
| 2011 | $1,018,001,365 | 206,687,568 | 206,687,568 |
Note: Quantity represents Weight in kilograms
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