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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Leaf-springs & leaves therefor, of iron/steel | $6,891,762 | $8,827,159 | $9,979,158 | $13,034,453 | $10,813,764 | $11,200,232 | $15,358,163 |
| Helical springs of iron/steel | $68,906,411 | $79,455,031 | $91,409,750 | $97,425,006 | $81,562,736 | $95,469,126 | $118,066,409 |
| Springs & leaves for springs, of iron/steel (excl. of 7320.10 & 7320.20) | $40,833,701 | $49,408,400 | $60,957,257 | $67,444,195 | $51,550,873 | $59,260,762 | $79,117,151 |
| Total | $116,631,874 | $137,690,590 | $162,346,165 | $177,903,654 | $143,927,373 | $165,930,120 | $212,541,723 |
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