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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $75,902,193 | 95,150,000 | 95,150,000 |
| 2006 | $133,900,066 | 182,522,000 | 182,522,000 |
| 2007 | $245,338,890 | 269,406,000 | 269,406,000 |
| 2008 | $314,573,593 | 351,869,905 | 351,869,905 |
| 2009 | $258,768,064 | 267,881,000 | 267,881,000 |
| 2010 | $399,914,845 | 316,349,992 | 316,349,992 |
| 2011 | $763,046,811 | 516,446,000 | 516,446,000 |
Note: Quantity represents Weight in kilograms
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