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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $489,776,058 | 102,267,858 | 102,267,858 |
| 2006 | $669,046,294 | 27,714,348 | 27,714,348 |
| 2007 | $736,619,751 | 26,483,269 | 26,483,269 |
| 2008 | $736,093,330 | 24,603,838 | 24,603,838 |
| 2009 | $591,794,111 | 19,030,721 | 19,030,721 |
| 2010 | $713,160,952 | 28,041,809 | 28,041,809 |
| 2011 | $864,069,964 | 35,029,018 | 35,029,018 |
Note: Quantity represents Weight in kilograms
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