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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $2,655,096 | 476,721,500 | 476,721,500 |
| 2006 | $3,246,096 | 510,987,009 | 510,987,009 |
| 2007 | $4,574,442 | 602,787,794 | 602,787,794 |
| 2008 | $6,618,872 | 747,302,500 | 747,302,500 |
| 2009 | $8,388,701 | 902,482,241 | 902,482,241 |
| 2010 | $15,884,874 | 1,592,262,322 | 1,592,262,322 |
| 2011 | $14,963,110 | 1,360,636,745 | 1,360,636,745 |
Note: Quantity represents Weight in kilograms
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