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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $255,717,953 | 435,306,678 | 435,306,678 |
| 2006 | $295,230,221 | 349,050,002 | 349,050,002 |
| 2007 | $354,346,733 | 378,261,868 | 378,261,868 |
| 2008 | $456,240,989 | 375,996,766 | 375,996,766 |
| 2009 | $319,216,905 | 369,865,178 | 369,865,178 |
| 2010 | $288,783,666 | 330,995,854 | 330,995,854 |
Note: Quantity represents Weight in kilograms
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