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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $656,940,051 | 202,800,170 | 202,800,170 |
| 2006 | $723,647,642 | 211,334,236 | 211,334,236 |
| 2007 | $836,205,261 | 217,837,010 | 217,837,010 |
| 2008 | $856,765,767 | 207,727,710 | 207,727,710 |
| 2009 | $667,925,590 | 181,370,803 | 181,370,803 |
| 2010 | $707,808,355 | 189,324,901 | 189,324,901 |
| 2011 | $776,637,514 | 200,328,264 | 200,328,264 |
Note: Quantity represents Weight in kilograms
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