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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $921,166,638 | 212,544,217 | 212,544,217 |
| 2006 | $1,009,771,386 | 209,785,458 | 209,785,458 |
| 2007 | $1,089,793,452 | 259,825,953 | 259,825,953 |
| 2008 | $1,280,528,058 | 301,192,025 | 301,192,025 |
| 2009 | $1,239,933,834 | 224,593,728 | 224,593,728 |
| 2010 | $1,618,431,604 | 328,274,215 | 328,274,215 |
| 2011 | $1,786,234,880 | 322,564,312 | 322,564,312 |
Note: Quantity represents Weight in kilograms
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