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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $303,353,750 | 222,076,485 | 222,076,485 |
| 2006 | $297,317,481 | 244,129,400 | 244,129,400 |
| 2007 | $336,149,267 | 264,150,400 | 264,150,400 |
| 2008 | $402,143,445 | 275,838,000 | 275,838,000 |
| 2009 | $380,332,086 | 277,248,800 | 277,248,800 |
| 2010 | $435,147,304 | 285,612,800 | 285,612,800 |
| 2011 | $381,414,800 | 286,521,000 | 286,521,000 |
Note: Quantity represents Weight in kilograms
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