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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $2,894,818,000 | 163,845,223 | 163,845,223 |
| 2006 | $3,006,731,000 | 171,760,514 | 171,760,514 |
| 2007 | $3,477,613,000 | 171,773,793 | 171,773,793 |
| 2008 | $4,066,385,000 | 190,671,463 | 190,671,463 |
| 2009 | $3,731,180,000 | 176,231,878 | 176,231,878 |
| 2010 | $3,639,674,903 | 178,993,956 | 178,993,956 |
| 2011 | $4,802,799,604 | 210,835,043 | 210,835,043 |
Note: Quantity represents Weight in kilograms
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