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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Leaf-springs & leaves therefor, of iron/steel | $155,579,000 | $160,891,000 | $211,796,000 | $269,253,000 | $104,191,000 | $148,338,011 | $192,408,065 |
| Helical springs of iron/steel | $113,379,000 | $130,723,000 | $130,891,000 | $142,669,000 | $146,531,000 | $174,065,479 | $222,372,276 |
| Springs & leaves for springs, of iron/steel (excl. of 7320.10 & 7320.20) | $71,427,000 | $87,160,000 | $94,088,000 | $111,055,000 | $80,883,000 | $98,503,382 | $127,594,395 |
| Total | $340,385,000 | $378,774,000 | $436,775,000 | $522,977,000 | $331,605,000 | $420,906,872 | $542,374,736 |
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