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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $441,211,000 | 243,066,100 | 243,066,100 |
| 2006 | $493,172,000 | 259,514,300 | 259,514,300 |
| 2007 | $547,792,000 | 263,491,700 | 263,491,700 |
| 2008 | $616,746,000 | 259,686,000 | 259,686,000 |
| 2009 | $598,788,000 | 271,911,562 | 271,911,562 |
| 2010 | $587,481,894 | 269,357,500 | 269,357,500 |
| 2011 | $657,326,158 | 279,303,403 | 279,303,403 |
Note: Quantity represents Weight in kilograms
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