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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $2,298,674 | 159,429 | 113,615 |
| 2006 | $3,082,902 | 203,778 | 147,967 |
| 2007 | $2,407,218 | 136,340 | 96,711 |
| 2008 | $3,071,422 | 168,091 | 128,245 |
| 2009 | $1,516,951 | 70,951 | 51,988 |
| 2010 | $3,257,955 | 195,123 | 138,447 |
| 2011 | $3,105,688 | 166,759 | 118,222 |
Note: Quantity represents Number of pairs
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