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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $427,975,223 | 12,131,978 | 12,131,978 |
| 2006 | $549,132,258 | 13,135,284 | 13,135,284 |
| 2007 | $1,442,889,815 | 26,247,908 | 26,247,908 |
| 2008 | $1,880,409,582 | 44,182,324 | 44,182,324 |
| 2009 | $1,199,380,226 | 41,153,394 | 41,153,394 |
| 2010 | $1,989,711,921 | 54,146,835 | 54,146,835 |
| 2011 | $1,579,424,893 | 52,938,007 | 52,938,007 |
Note: Quantity represents Weight in kilograms
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