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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $618,994,096 | 50,754,758 | 50,754,758 |
| 2006 | $657,624,899 | 53,232,823 | 53,232,823 |
| 2007 | $710,766,002 | 54,764,303 | 54,764,303 |
| 2008 | $775,861,010 | 50,660,272 | 50,660,272 |
| 2009 | $621,298,495 | 32,622,134 | 32,622,134 |
| 2010 | $872,956,674 | 46,418,381 | 46,418,381 |
| 2011 | $932,174,629 | 49,101,276 | 49,101,276 |
Note: Quantity represents Weight in kilograms
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