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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $15,826,767,853 | 204,899,362 | 204,899,362 |
| 2006 | $18,342,509,736 | 171,590,156 | 171,590,156 |
| 2007 | $1,802,005,906 | 280 | 0 |
| 2008 | $14,743,054,208 | 0 | 0 |
| 2009 | $8,831,712,033 | 65,009,792 | 65,009,792 |
| 2010 | $11,205,624,436 | 0 | 0 |
| 2011 | $10,464,186,552 | 0 | 0 |
Note: Quantity represents Weight in kilograms
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