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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $20,261 | 85,090 | 85,090 |
| 2006 | $21,558 | 4,401,131,556 | 4,401,131,556 |
| 2007 | $246,566 | 13,152,640 | 13,152,640 |
| 2008 | $1,395,049 | 2,878,594 | 2,878,594 |
| 2009 | $2,018,972 | 2,663,086 | 2,663,086 |
| 2010 | $2,066,111 | 3,992,322 | 3,992,322 |
| 2011 | $2,498,316 | 3,843,795 | 3,843,795 |
Note: Quantity represents Weight in kilograms
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