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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $520,523,527 | 52,842,695 | 52,842,695 |
| 2006 | $617,319,695 | 57,144,470 | 57,144,470 |
| 2007 | $641,975,343 | 54,776,580 | 54,776,580 |
| 2008 | $615,043,314 | 53,997,334 | 53,997,334 |
| 2009 | $499,471,448 | 38,716,063 | 38,716,063 |
| 2010 | $774,661,942 | 49,862,212 | 49,862,212 |
| 2011 | $838,817,836 | 58,379,272 | 58,379,272 |
Note: Quantity represents Weight in kilograms
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