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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $281,230,344 | 1,300,685,400 | 1,300,685,400 |
| 2006 | $400,825,234 | 1,586,321,645 | 1,586,321,645 |
| 2007 | $524,330,353 | 2,055,101,841 | 2,055,101,841 |
| 2008 | $638,696,232 | 1,976,269,900 | 1,976,269,900 |
| 2009 | $775,811,980 | 2,056,624,500 | 2,056,624,500 |
| 2010 | $753,609,755 | 2,060,825,426 | 2,060,825,426 |
| 2011 | $988,932,648 | 2,137,285,925 | 2,137,285,925 |
Note: Quantity represents Weight in kilograms
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