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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $840,367,183 | 14,920,982 | 14,920,982 |
| 2006 | $1,241,932,135 | 16,755,288 | 16,755,288 |
| 2007 | $1,853,870,489 | 21,110,772 | 21,110,772 |
| 2008 | $2,296,516,902 | 18,675,988 | 18,675,988 |
| 2009 | $2,101,607,122 | 32,666,319 | 32,666,319 |
| 2010 | $2,691,927,421 | 50,574,930 | 50,574,930 |
| 2011 | $2,580,438,180 | 55,227,811 | 55,227,811 |
Note: Quantity represents Weight in kilograms
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