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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $189,455,958 | 885,776,008 | 885,776,008 |
| 2006 | $262,784,644 | 1,110,275,016 | 1,110,275,016 |
| 2007 | $278,288,397 | 1,107,231,000 | 1,107,231,000 |
| 2008 | $229,859,652 | 706,963,000 | 706,963,000 |
| 2009 | $98,931,513 | 450,666,992 | 450,666,992 |
| 2010 | $151,368,692 | 576,413,008 | 576,413,008 |
| 2011 | $179,872,312 | 633,980,000 | 633,980,000 |
Note: Quantity represents Weight in kilograms
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