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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $502,658,460 | 1,334,149 | 1,334,149 |
| 2006 | $570,977,839 | 2,665,421 | 2,665,421 |
| 2007 | $786,628,675 | 13,760,400 | 13,760,400 |
| 2008 | $852,981,493 | 1,256,403 | 1,256,403 |
| 2009 | $956,270,594 | 1,200,284 | 1,200,284 |
| 2010 | $1,304,768,874 | 1,529,279 | 1,529,279 |
| 2011 | $1,540,374,298 | 1,224,741 | 1,224,741 |
Note: Quantity represents Weight in kilograms
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