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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $482,322,937 | 2,777,078,968 | 2,777,078,968 |
| 2006 | $513,461,992 | 2,695,842,992 | 2,695,842,992 |
| 2007 | $591,705,338 | 2,714,077,008 | 2,714,077,008 |
| 2008 | $670,723,581 | 2,153,325,989 | 2,153,325,989 |
| 2009 | $823,892,036 | 3,629,365,968 | 3,629,365,968 |
| 2010 | $909,200,812 | 3,718,389,016 | 3,718,389,016 |
| 2011 | $1,031,644,201 | 3,916,952,016 | 3,916,952,016 |
Note: Quantity represents Weight in kilograms
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