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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,190,361,649 | 212,963,752 | 212,963,752 |
| 2006 | $1,371,420,001 | 213,053,210 | 213,053,210 |
| 2007 | $1,324,656,991 | 198,085,455 | 198,085,455 |
| 2008 | $1,532,588,777 | 191,191,063 | 191,191,063 |
| 2009 | $1,499,140,432 | 176,401,225 | 176,401,225 |
| 2010 | $1,520,703,386 | 193,513,453 | 193,513,453 |
| 2011 | $2,078,923,834 | 224,753,188 | 224,753,188 |
Note: Quantity represents Weight in kilograms
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