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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $513,487,612 | 42,322,095 | 42,322,095 |
| 2006 | $553,496,466 | 44,143,445 | 44,143,445 |
| 2007 | $822,343,477 | 61,760,988 | 61,760,988 |
| 2008 | $1,179,476,508 | 82,661,117 | 82,661,117 |
| 2009 | $1,014,413,626 | 69,086,541 | 69,086,541 |
| 2010 | $1,412,921,886 | 97,731,193 | 97,731,193 |
| 2011 | $1,712,092,813 | 107,884,845 | 107,884,845 |
Note: Quantity represents Weight in kilograms
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