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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $753,929,934 | 33,284,548 | 33,284,548 |
| 2006 | $836,743,471 | 36,344,990 | 36,344,990 |
| 2007 | $957,712,570 | 39,299,019 | 39,299,019 |
| 2008 | $1,006,690,128 | 37,992,834 | 37,992,834 |
| 2009 | $901,817,824 | 40,342,811 | 40,342,811 |
| 2010 | $1,082,190,431 | 46,377,909 | 46,377,909 |
| 2011 | $1,247,439,880 | 42,950,071 | 42,950,071 |
Note: Quantity represents Weight in kilograms
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