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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $575,364,950 | 142,234,361 | 142,234,361 |
| 2006 | $610,610,487 | 150,027,101 | 150,027,101 |
| 2007 | $699,935,993 | 170,819,014 | 170,819,014 |
| 2008 | $686,139,264 | 160,028,114 | 160,028,114 |
| 2009 | $442,689,251 | 115,205,871 | 115,205,871 |
| 2010 | $610,927,180 | 139,315,479 | 139,315,479 |
| 2011 | $872,592,465 | 159,409,279 | 159,409,279 |
Note: Quantity represents Weight in kilograms
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