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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $304,386,462 | 27,642,117 | 27,642,117 |
| 2006 | $368,870,568 | 40,677,309 | 40,677,309 |
| 2007 | $441,669,655 | 47,136,680 | 47,136,680 |
| 2008 | $630,314,718 | 49,160,289 | 49,160,289 |
| 2009 | $626,516,868 | 46,634,303 | 46,634,303 |
| 2010 | $626,539,675 | 41,028,367 | 41,028,367 |
| 2011 | $721,753,485 | 44,148,692 | 44,148,692 |
Note: Quantity represents Weight in kilograms
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