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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $329,526,092 | 131,467,444 | 131,467,444 |
| 2006 | $390,712,106 | 231,986,485 | 231,986,485 |
| 2007 | $661,546,378 | 338,781,465 | 338,781,465 |
| 2008 | $690,418,688 | 295,633,331 | 295,633,331 |
| 2009 | $502,704,746 | 181,809,683 | 181,809,683 |
| 2010 | $502,859,387 | 211,541,489 | 211,541,489 |
| 2011 | $633,252,484 | 255,774,814 | 255,774,814 |
Note: Quantity represents Weight in kilograms
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