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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $533,433,885 | 498,387,830 | 498,387,830 |
| 2006 | $515,298,714 | 447,909,781 | 447,909,781 |
| 2007 | $811,839,251 | 616,489,733 | 616,489,733 |
| 2008 | $694,493,810 | 518,162,990 | 518,162,990 |
| 2009 | $693,937,090 | 759,428,413 | 759,428,413 |
| 2010 | $1,013,497,900 | 858,088,088 | 858,088,088 |
| 2011 | $1,080,717,149 | 776,157,211 | 776,157,211 |
Note: Quantity represents Weight in kilograms
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