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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $399,404,348 | 92,058,492 | 92,058,492 |
| 2006 | $495,821,674 | 108,315,696 | 108,315,696 |
| 2007 | $722,534,767 | 128,236,223 | 128,236,223 |
| 2008 | $994,082,536 | 125,548,575 | 125,548,575 |
| 2009 | $1,251,638,495 | 143,183,622 | 143,183,622 |
| 2010 | $2,287,886,998 | 211,204,752 | 211,204,752 |
| 2011 | $2,603,451,756 | 236,413,754 | 236,413,754 |
Note: Quantity represents Weight in kilograms
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