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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $4,600,527 | 300,768,698 | 300,768,698 |
| 2006 | $6,475,596 | 642,412,200 | 642,412,200 |
| 2007 | $6,030,202 | 601,869,993 | 601,869,993 |
| 2008 | $6,545,547 | 570,023,741 | 570,023,741 |
| 2009 | $8,146,159 | 613,988,000 | 613,988,000 |
| 2010 | $7,517,470 | 511,787,418 | 511,787,418 |
| 2011 | $9,393,242 | 562,714,244 | 562,714,244 |
Note: Quantity represents Weight in kilograms
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