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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $836,902,509 | 22,441,838 | 22,441,838 |
| 2006 | $934,229,716 | 15,972,925 | 15,972,925 |
| 2007 | $1,083,484,031 | 15,832,802 | 15,832,802 |
| 2008 | $1,104,507,512 | 15,208,903 | 15,208,903 |
| 2009 | $1,215,800,712 | 19,488,155 | 19,488,155 |
| 2010 | $1,266,218,494 | 21,304,274 | 21,304,274 |
| 2011 | $1,228,183,610 | 20,605,825 | 20,605,825 |
Note: Quantity represents Weight in kilograms
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