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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $114,221,434 | 133,662,059 | 133,662,059 |
| 2006 | $170,220,189 | 141,835,097 | 141,835,097 |
| 2007 | $265,804,982 | 796,081,771 | 796,081,771 |
| 2008 | $545,862,351 | 237,056,117 | 237,056,117 |
| 2010 | $390,385,994 | 184,087,091 | 184,087,091 |
Note: Quantity represents Weight in kilograms
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