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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,576,205 | 221,070,473 | 221,070,473 |
| 2006 | $1,775,143 | 275,543,524 | 275,543,524 |
| 2007 | $1,826,981 | 238,760,114 | 238,760,114 |
| 2008 | $2,169,621 | 255,166,648 | 255,166,648 |
| 2009 | $1,136,195 | 152,435,939 | 152,435,939 |
| 2010 | $777,503 | 76,559,267 | 76,559,267 |
Note: Quantity represents Weight in kilograms
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