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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,516,515,677 | 3,800,236 | 3,800,236 |
| 2006 | $1,661,355,344 | 3,986,235 | 3,986,235 |
| 2007 | $1,674,678,920 | 5,089,876 | 5,089,876 |
| 2008 | $2,058,990,141 | 4,850,870 | 4,850,870 |
| 2009 | $1,829,662,825 | 4,091,108 | 4,091,108 |
| 2010 | $2,005,650,419 | 4,228,795 | 4,228,795 |
| 2011 | $2,141,872,646 | 4,417,787 | 4,417,787 |
Note: Quantity represents Weight in kilograms
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