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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Coach screws of iron/steel | $13,516 | $19,099 | $40,421 | $36,702 | $40,488 | $299,902 | $65,644 |
| Wood screws other than coach screws, of iron/steel | $269,816 | $286,162 | $1,072,473 | $967,615 | $441,598 | $407,922 | $874,150 |
| Screw hooks & screw rings, of iron/steel | $53,279 | $106,968 | $196,949 | $132,226 | $104,161 | $79,595 | $213,879 |
| Self-tapping screws of iron/steel | $782,118 | $1,438,857 | $2,915,879 | $7,066,962 | $2,882,914 | $3,744,296 | $5,679,423 |
| Screws & bolts (excl. of 7318.11-7318.14), whether or not with their nuts/w ... | $10,533,125 | $11,871,374 | $20,599,563 | $22,530,830 | $19,088,180 | $24,097,710 | $29,646,625 |
| Nuts of iron/steel | $453,787 | $696,188 | $867,295 | $885,469 | $979,011 | $1,466,068 | $1,346,359 |
| Threaded arts. of iron/steel (excl. of 73.07, 7318.11-7318.16) | $975,128 | $1,025,622 | $1,622,832 | $1,586,814 | $2,043,071 | $3,245,795 | $6,155,234 |
| Spring washers & oth. lock washers, of iron/steel | $148,455 | $402,904 | $429,001 | $537,970 | $790,637 | $1,143,250 | $1,171,476 |
| Washers (excl. of 7318.21) of iron/steel | $168,889 | $465,662 | $444,219 | $505,899 | $432,798 | $553,703 | $738,461 |
| Rivets of iron/steel | $571,670 | $679,865 | $639,376 | $822,056 | $1,343,907 | $635,222 | $694,047 |
| Cotters & cotter-pins, of iron/steel | $491,090 | $918,555 | $1,921,556 | $1,867,692 | $1,953,282 | $2,181,883 | $2,234,401 |
| Non-threaded arts. sim. to rivets, cotters and the like, of iron/steel (exc ... | $3,381,543 | $3,157,892 | $4,168,470 | $5,449,915 | $4,287,150 | $4,990,542 | $6,507,574 |
| Total | $17,842,416 | $21,069,148 | $34,918,034 | $42,390,150 | $34,387,197 | $42,845,888 | $55,327,273 |
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