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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $216,685,139 | 175,386,342 | 175,386,342 |
| 2006 | $275,854,064 | 202,637,437 | 202,637,437 |
| 2007 | $369,860,526 | 250,558,447 | 250,558,447 |
| 2008 | $383,723,874 | 237,413,370 | 237,413,370 |
| 2009 | $358,527,961 | 205,032,289 | 205,032,289 |
| 2010 | $577,990,831 | 277,266,682 | 277,266,682 |
| 2011 | $706,778,395 | 287,416,631 | 287,416,631 |
Note: Quantity represents Weight in kilograms
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