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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Coach screws of iron/steel | $22,624 | $36,502 | $79,735 | $21,977 | $972,216 | $141,544 | $3,656,000 |
| Wood screws other than coach screws, of iron/steel | $29,187 | $61,097 | $47,772 | $71,316 | $294,097 | $442,177 | $233,000 |
| Screw hooks & screw rings, of iron/steel | $107,771 | $62,254 | $64,104 | $75,573 | $51,388 | $33,283 | $72,000 |
| Self-tapping screws of iron/steel | $56,991 | $112,638 | $142,558 | $115,080 | $109,317 | $61,866 | $329,000 |
| Screws & bolts (excl. of 7318.11-7318.14), whether or not with their nuts/w ... | $1,566,176 | $1,693,517 | $2,720,128 | $2,265,928 | $2,967,208 | $2,309,486 | $3,857,000 |
| Nuts of iron/steel | $140,046 | $121,408 | $149,247 | $117,758 | $171,164 | $186,286 | $288,000 |
| Threaded arts. of iron/steel (excl. of 73.07, 7318.11-7318.16) | $205,590 | $894,786 | $365,160 | $394,581 | $2,043,045 | $316,448 | $627,000 |
| Spring washers & oth. lock washers, of iron/steel | $61,790 | $65,673 | $257,004 | $72,417 | $68,603 | $79,707 | $70,000 |
| Washers (excl. of 7318.21) of iron/steel | $158,657 | $132,217 | $149,162 | $109,409 | $395,862 | $271,553 | $260,000 |
| Rivets of iron/steel | $28,943 | $42,602 | $105,832 | $168,285 | $32,149 | $82,690 | $46,000 |
| Cotters & cotter-pins, of iron/steel | $94,719 | $42,541 | $38,456 | $32,122 | $23,521 | $56,412 | $30,000 |
| Non-threaded arts. sim. to rivets, cotters and the like, of iron/steel (exc ... | $264,155 | $670,470 | $319,982 | $310,238 | $341,765 | $330,734 | $341,000 |
| Total | $2,736,649 | $3,935,705 | $4,439,140 | $3,754,684 | $7,470,335 | $4,312,186 | $9,809,000 |
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