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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Coach screws of iron/steel | $48,369 | $6,560 | $30,691 | $45,451 | $39,287 | $806,311 | $371,795 |
| Wood screws other than coach screws, of iron/steel | $5,502,069 | $6,466,363 | $7,990,022 | $11,509,810 | $5,242,977 | $7,047,596 | $6,186,674 |
| Screw hooks & screw rings, of iron/steel | $241,205 | $341,355 | $435,824 | $528,669 | $358,103 | $542,556 | $906,008 |
| Self-tapping screws of iron/steel | $4,226,926 | $4,340,376 | $9,110,460 | $15,965,366 | $13,946,930 | $13,985,840 | $17,490,002 |
| Screws & bolts (excl. of 7318.11-7318.14), whether or not with their nuts/w ... | $12,861,900 | $17,682,866 | $29,695,259 | $44,005,749 | $17,981,160 | $27,087,548 | $34,475,082 |
| Nuts of iron/steel | $5,474,927 | $7,769,473 | $11,942,277 | $16,527,710 | $5,888,724 | $9,524,054 | $12,506,650 |
| Threaded arts. of iron/steel (excl. of 73.07, 7318.11-7318.16) | $5,158,266 | $5,128,395 | $6,071,208 | $7,643,712 | $3,668,795 | $6,790,501 | $5,893,149 |
| Spring washers & oth. lock washers, of iron/steel | $993,262 | $1,597,462 | $2,036,100 | $2,382,893 | $865,139 | $2,123,417 | $2,647,475 |
| Washers (excl. of 7318.21) of iron/steel | $2,454,137 | $3,511,267 | $3,762,596 | $5,891,980 | $2,371,090 | $3,643,895 | $5,609,002 |
| Rivets of iron/steel | $1,332,810 | $1,513,699 | $1,515,017 | $1,907,443 | $759,719 | $1,114,003 | $1,122,382 |
| Cotters & cotter-pins, of iron/steel | $369,867 | $615,665 | $1,000,982 | $1,075,749 | $605,267 | $1,015,246 | $1,188,836 |
| Non-threaded arts. sim. to rivets, cotters and the like, of iron/steel (exc ... | $2,148,278 | $2,360,398 | $3,192,821 | $3,601,983 | $1,235,953 | $1,924,528 | $2,402,361 |
| Total | $40,812,016 | $51,333,879 | $76,783,257 | $111,086,515 | $52,963,144 | $75,605,495 | $90,799,416 |
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