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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $753,594,167 | 488,936,992 | 488,936,992 |
| 2006 | $818,526,201 | 555,535,714 | 555,535,714 |
| 2007 | $846,783,924 | 585,025,302 | 585,025,302 |
| 2008 | $864,235,870 | 387,020,181 | 387,020,181 |
| 2009 | $807,621,218 | 648,740,047 | 648,740,047 |
| 2010 | $993,245,555 | 763,107,863 | 763,107,863 |
| 2011 | $1,015,700,547 | 779,392,743 | 779,392,743 |
Note: Quantity represents Weight in kilograms
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