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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $148,079,987 | 662,019,778 | 662,019,778 |
| 2006 | $235,691,456 | 832,831,623 | 832,831,623 |
| 2007 | $356,773,207 | 1,097,427,544 | 1,097,427,544 |
| 2008 | $592,801,343 | 1,333,395,063 | 1,333,395,063 |
| 2009 | $511,985,901 | 1,473,605,733 | 1,473,605,733 |
| 2010 | $613,004,567 | 1,344,536,669 | 1,344,536,669 |
| 2011 | $654,524,060 | 1,100,083,744 | 1,100,083,744 |
Note: Quantity represents Weight in kilograms
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