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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $33,386,573 | 312,927,512 | 312,927,512 |
| 2006 | $34,721,574 | 286,952,094 | 286,952,094 |
| 2007 | $44,943,258 | 276,814,572 | 276,814,572 |
| 2008 | $35,656,906 | 182,064,427 | 182,064,427 |
| 2009 | $17,374,542 | 75,540,788 | 75,540,788 |
| 2010 | $32,389,860 | 118,142,083 | 118,142,083 |
Note: Quantity represents Weight in kilograms
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