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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $615,802,096 | 6,556,792 | 6,556,792 |
| 2006 | $820,339,640 | 7,722,911 | 7,722,911 |
| 2007 | $978,826,741 | 6,737,314 | 6,737,314 |
| 2008 | $992,209,637 | 0 | 0 |
| 2009 | $1,179,255,105 | 5,110,818 | 5,110,818 |
| 2010 | $1,264,183,144 | 7,805,311 | 7,805,311 |
| 2011 | $1,679,918,837 | 8,052,368 | 8,052,368 |
Note: Quantity represents Weight in kilograms
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