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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $199,454,806 | 987,656,257 | 987,656,257 |
| 2006 | $198,269,387 | 944,571,452 | 944,571,452 |
| 2007 | $224,562,320 | 761,106,390 | 761,106,390 |
| 2008 | $329,168,682 | 644,941,293 | 644,941,293 |
| 2009 | $174,881,258 | 692,347,019 | 692,347,019 |
| 2010 | $194,773,642 | 664,806,620 | 664,806,620 |
| 2011 | $392,728,689 | 898,045,577 | 898,045,577 |
Note: Quantity represents Weight in kilograms
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