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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $502,949,914 | 898,323,649 | 898,323,649 |
| 2006 | $551,317,705 | 1,248,245,325 | 1,248,245,325 |
| 2007 | $650,668,768 | 915,065,171 | 915,065,171 |
| 2008 | $696,507,392 | 881,357,479 | 881,357,479 |
| 2009 | $451,012,083 | 767,018,807 | 767,018,807 |
| 2010 | $727,011,685 | 843,759,756 | 843,759,756 |
Note: Quantity represents Weight in kilograms
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