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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $267,750,977 | 105,011,502 | 105,011,502 |
| 2006 | $454,005,635 | 155,595,093 | 155,595,093 |
| 2007 | $719,989,781 | 237,055,969 | 237,055,969 |
| 2008 | $1,156,468,867 | 370,907,417 | 370,907,417 |
| 2009 | $822,261,202 | 287,713,542 | 287,713,542 |
| 2010 | $1,744,580,771 | 555,658,127 | 555,658,127 |
| 2011 | $2,172,746,279 | 707,914,758 | 707,914,758 |
Note: Quantity represents Weight in kilograms
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