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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $25,123,870 | 443,684 | 443,684 |
| 2006 | $60,945,697 | 546,365 | 546,365 |
| 2007 | $134,221,067 | 962,466 | 962,466 |
| 2008 | $740,835,538 | 3,610,389 | 3,610,389 |
| 2009 | $866,241,769 | 10,711,862 | 10,711,862 |
| 2010 | $1,379,899,180 | 22,297,834 | 22,297,834 |
| 2011 | $2,169,563,026 | 38,592,369 | 38,592,369 |
Note: Quantity represents Weight in kilograms
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