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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,321,905,161 | 1,510,575 | 1,510,575 |
| 2006 | $1,484,393,925 | 1,832,347 | 1,832,347 |
| 2007 | $1,465,415,989 | 2,138,149 | 2,138,149 |
| 2008 | $1,542,373,950 | 2,020,754 | 2,020,754 |
| 2009 | $1,628,081,560 | 2,155,728 | 2,155,728 |
| 2010 | $1,582,134,663 | 2,003,497 | 2,003,497 |
| 2011 | $1,776,562,805 | 2,044,787 | 2,044,787 |
Note: Quantity represents Weight in kilograms
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