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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Coach screws of iron/steel | $71,533 | $24,590 | $13,906 | $44,484 | $76,594 | $25,983 | $238,889 |
| Wood screws other than coach screws, of iron/steel | $234,874 | $385,068 | $497,960 | $221,691 | $238,273 | $367,067 | $547,257 |
| Screw hooks & screw rings, of iron/steel | $1,122,044 | $254,823 | $143,583 | $45,630 | $65,452 | $290,206 | $855,021 |
| Self-tapping screws of iron/steel | $490,039 | $775,420 | $305,814 | $560,169 | $358,964 | $312,851 | $1,235,861 |
| Screws & bolts (excl. of 7318.11-7318.14), whether or not with their nuts/w ... | $13,259,315 | $17,593,315 | $18,500,361 | $20,673,073 | $18,496,392 | $22,837,904 | $30,258,554 |
| Nuts of iron/steel | $5,561,566 | $5,437,705 | $4,342,655 | $2,805,261 | $3,201,920 | $3,954,226 | $4,118,251 |
| Threaded arts. of iron/steel (excl. of 73.07, 7318.11-7318.16) | $1,463,632 | $2,122,862 | $1,898,438 | $1,492,244 | $1,179,659 | $1,408,390 | $3,260,959 |
| Spring washers & oth. lock washers, of iron/steel | $547,919 | $591,659 | $132,503 | $173,059 | $138,159 | $398,333 | $963,318 |
| Washers (excl. of 7318.21) of iron/steel | $534,873 | $817,000 | $746,207 | $1,608,814 | $836,949 | $2,162,144 | $3,198,316 |
| Rivets of iron/steel | $720,442 | $543,316 | $339,124 | $372,255 | $350,559 | $701,556 | $1,429,823 |
| Cotters & cotter-pins, of iron/steel | $143,923 | $166,057 | $120,822 | $385,437 | $87,832 | $150,070 | $328,653 |
| Non-threaded arts. sim. to rivets, cotters and the like, of iron/steel (exc ... | $3,565,320 | $4,144,591 | $4,213,300 | $1,588,659 | $1,235,181 | $1,825,963 | $2,635,414 |
| Total | $27,715,480 | $32,856,406 | $31,254,673 | $29,970,776 | $26,265,934 | $34,434,693 | $49,070,316 |
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