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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $2,042,362,426 | 318,213,362 | 53,841,990 |
| 2006 | $2,273,293,068 | 326,861,744 | 59,929,923 |
| 2007 | $2,751,328,083 | 342,980,067 | 43,360,269 |
| 2008 | $3,019,248,218 | 329,957,502 | 49,153,642 |
| 2009 | $2,146,430,001 | 260,556,993 | 29,041,292 |
| 2010 | $2,200,851,553 | 288,135,153 | 32,356,336 |
| 2011 | $2,361,809,285 | 282,199,751 | 0 |
Note: Quantity represents Number of items
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