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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,450,282,250 | 142,045,274 | 142,045,274 |
| 2006 | $1,724,594,963 | 111,120,407 | 111,120,407 |
| 2007 | $2,092,184,610 | 125,777,189 | 125,777,189 |
| 2008 | $1,938,209,217 | 0 | 0 |
| 2009 | $1,415,241,117 | 0 | 0 |
| 2010 | $1,341,302,187 | 0 | 0 |
| 2011 | $1,582,170,932 | 0 | 0 |
Note: Quantity represents Weight in kilograms
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