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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $330,834,000 | 146,715,443 | 146,715,443 |
| 2006 | $413,111,000 | 163,487,100 | 163,487,100 |
| 2007 | $529,639,000 | 181,128,800 | 181,128,800 |
| 2008 | $510,255,000 | 156,463,007 | 156,463,007 |
| 2009 | $389,015,000 | 132,148,119 | 132,148,119 |
| 2010 | $684,091,506 | 245,335,426 | 245,335,426 |
| 2011 | $912,694,577 | 253,856,688 | 253,856,688 |
Note: Quantity represents Weight in kilograms
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