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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $76,372,991 | 436,604,008 | 436,604,008 |
| 2006 | $174,560,172 | 681,369,000 | 681,369,000 |
| 2007 | $238,763,779 | 929,391,992 | 929,391,992 |
| 2008 | $353,865,149 | 1,160,213,603 | 1,160,213,603 |
| 2009 | $377,310,208 | 1,122,048,000 | 1,122,048,000 |
| 2010 | $523,553,523 | 1,344,778,000 | 1,344,778,000 |
| 2011 | $667,086,257 | 1,427,845,992 | 1,427,845,992 |
Note: Quantity represents Weight in kilograms
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