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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Coach screws of iron/steel | $13,115,083 | $1,552,834 | $2,928,795 | $2,080,875 | $270,935 | $712,845 | $1,356,498 |
| Wood screws other than coach screws, of iron/steel | $1,757,445 | $1,975,235 | $1,899,176 | $4,892,934 | $3,966,106 | $4,264,484 | $5,337,663 |
| Screw hooks & screw rings, of iron/steel | $650,295 | $901,556 | $846,175 | $2,914,516 | $1,871,280 | $4,947,500 | $7,584,988 |
| Self-tapping screws of iron/steel | $1,708,324 | $1,383,152 | $1,587,302 | $4,285,865 | $2,951,572 | $7,390,214 | $11,133,801 |
| Screws & bolts (excl. of 7318.11-7318.14), whether or not with their nuts/w ... | $73,144,305 | $63,276,660 | $86,703,876 | $174,151,893 | $113,434,446 | $185,237,570 | $229,741,067 |
| Nuts of iron/steel | $28,938,469 | $25,026,496 | $35,972,104 | $62,421,230 | $45,987,098 | $78,604,107 | $96,765,172 |
| Threaded arts. of iron/steel (excl. of 73.07, 7318.11-7318.16) | $6,711,607 | $4,247,788 | $6,953,190 | $11,415,086 | $11,065,404 | $30,430,703 | $21,060,845 |
| Spring washers & oth. lock washers, of iron/steel | $6,120,146 | $8,082,083 | $3,192,713 | $6,875,277 | $6,628,279 | $12,043,430 | $17,643,833 |
| Washers (excl. of 7318.21) of iron/steel | $23,688,480 | $18,557,541 | $21,483,630 | $37,229,639 | $28,846,472 | $51,922,259 | $67,987,086 |
| Rivets of iron/steel | $2,624,966 | $1,830,900 | $2,532,999 | $3,746,796 | $2,645,817 | $4,210,532 | $4,768,474 |
| Cotters & cotter-pins, of iron/steel | $10,208,376 | $12,278,602 | $14,354,545 | $18,598,132 | $11,216,010 | $26,876,369 | $40,306,301 |
| Non-threaded arts. sim. to rivets, cotters and the like, of iron/steel (exc ... | $25,731,698 | $24,924,010 | $38,159,788 | $59,002,586 | $36,978,531 | $68,778,410 | $73,261,084 |
| Total | $194,399,194 | $164,036,857 | $216,614,293 | $387,614,829 | $265,861,950 | $475,418,423 | $576,946,812 |
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