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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $610,343,009 | 37,859,448 | 37,859,448 |
| 2006 | $949,134,857 | 61,979,985 | 61,979,985 |
| 2007 | $858,276,595 | 56,768,832 | 56,768,832 |
| 2008 | $714,788,869 | 0 | 0 |
| 2009 | $612,305,701 | 41,727,672 | 41,727,672 |
| 2010 | $762,187,498 | 52,187,928 | 52,187,928 |
| 2011 | $749,640,331 | 45,368,354 | 45,368,354 |
Note: Quantity represents Weight in kilograms
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