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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $523,941,228 | 323,706,158 | 323,706,158 |
| 2006 | $588,516,995 | 312,774,738 | 312,774,738 |
| 2007 | $622,523,749 | 233,323,239 | 233,323,239 |
| 2008 | $761,969,774 | 292,501,762 | 292,501,762 |
| 2009 | $481,696,291 | 268,724,210 | 268,724,210 |
| 2010 | $616,122,496 | 286,362,434 | 286,362,434 |
| 2011 | $553,640,165 | 239,982,849 | 239,982,849 |
Note: Quantity represents Weight in kilograms
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