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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $501,228,873 | 274,443,220 | 274,443,220 |
| 2006 | $580,859,473 | 290,826,460 | 290,826,460 |
| 2007 | $681,112,504 | 309,570,462 | 309,570,462 |
| 2008 | $676,555,797 | 285,616,588 | 285,616,588 |
| 2009 | $481,006,852 | 249,384,728 | 249,384,728 |
| 2010 | $573,045,079 | 279,384,162 | 279,384,162 |
| 2011 | $700,077,596 | 280,623,966 | 280,623,966 |
Note: Quantity represents Weight in kilograms
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