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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $521,938,584 | 22,006,307 | 22,006,307 |
| 2006 | $594,450,192 | 25,063,587 | 25,063,587 |
| 2007 | $626,109,040 | 24,270,314 | 24,270,314 |
| 2008 | $684,219,442 | 25,446,766 | 25,446,766 |
| 2009 | $559,860,052 | 18,485,544 | 18,485,544 |
| 2010 | $706,246,028 | 23,063,115 | 23,063,115 |
| 2011 | $920,942,095 | 28,639,860 | 28,639,860 |
Note: Quantity represents Weight in kilograms
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