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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $763,235,622 | 128,182,697 | 128,182,697 |
| 2006 | $1,111,113,210 | 180,050,706 | 180,050,706 |
| 2007 | $1,403,996,967 | 186,903,193 | 186,903,193 |
| 2008 | $1,539,844,341 | 179,714,275 | 179,714,275 |
| 2009 | $917,649,182 | 83,106,236 | 83,106,236 |
| 2010 | $1,156,551,737 | 113,875,612 | 113,875,612 |
| 2011 | $1,544,770,104 | 149,523,836 | 149,523,836 |
Note: Quantity represents Weight in kilograms
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