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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Leaf-springs & leaves therefor, of iron/steel | $994,551 | $1,486,131 | $2,331,685 | $4,429,977 | $2,253,913 | $3,127,512 | $3,114,299 |
| Helical springs of iron/steel | $2,583,239 | $2,986,081 | $3,800,546 | $5,492,172 | $4,620,793 | $5,590,626 | $6,346,472 |
| Springs & leaves for springs, of iron/steel (excl. of 7320.10 & 7320.20) | $750,146 | $664,684 | $508,969 | $543,843 | $435,970 | $705,539 | $543,431 |
| Total | $4,327,936 | $5,136,896 | $6,641,200 | $10,465,992 | $7,310,676 | $9,423,677 | $10,004,202 |
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