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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $6,491,794 | 208,449,055 | 208,449,055 |
| 2006 | $7,775,127 | 233,768,296 | 233,768,296 |
| 2007 | $15,962,886 | 2,170,516,080 | 2,170,516,080 |
| 2008 | $18,640,032 | 3,523,311,850 | 3,523,311,850 |
| 2009 | $10,762,503 | 319,576,888 | 319,576,888 |
| 2010 | $10,461,932 | 339,076,972 | 339,076,972 |
| 2011 | $12,540,032 | 390,778,260 | 390,778,260 |
Note: Quantity represents Weight in kilograms
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