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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,014,038,185 | 201,329,994 | 201,329,994 |
| 2006 | $1,017,896,492 | 222,133,174 | 222,133,174 |
| 2007 | $1,068,250,010 | 234,764,236 | 234,764,236 |
| 2008 | $1,360,967,088 | 267,654,966 | 267,654,966 |
| 2009 | $1,305,516,858 | 233,334,417 | 233,334,417 |
| 2010 | $1,379,735,536 | 230,868,865 | 230,868,865 |
| 2011 | $1,671,308,121 | 254,077,484 | 254,077,484 |
Note: Quantity represents Weight in kilograms
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