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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $2,537,451,000 | 105,343,500 | 72,845 |
| 2006 | $3,499,184,000 | 140,795,800 | 100,454 |
| 2007 | $2,550,850,000 | 105,783,900 | 67,094 |
| 2008 | $2,367,668,000 | 103,851,300 | 69,637 |
| 2009 | $1,334,665,000 | 58,060,400 | 38,636 |
| 2010 | $1,361,034,542 | 56,492,200 | 33,536 |
| 2011 | $1,537,299,703 | 59,716,419 | 38,538 |
Note: Quantity represents Number of items
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