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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $415,272 | 265,566 | 265,566 |
| 2006 | $605,747 | 310,484 | 310,484 |
| 2007 | $697,603 | 346,026 | 346,026 |
| 2008 | $182,681,106 | 202,393,950 | 202,393,950 |
| 2009 | $250,458,963 | 399,114,032 | 399,114,032 |
| 2010 | $570,952,301 | 747,764,608 | 747,764,608 |
| 2011 | $657,815,104 | 703,023,672 | 703,023,672 |
Note: Quantity represents Weight in kilograms
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