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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Coach screws of iron/steel | $915,699 | $383,146 | $1,017,457 | $136,870 | $68,232 | $84,619 | $68,757 |
| Wood screws other than coach screws, of iron/steel | $1,679,425 | $3,371,511 | $360,090 | $257,021 | $394,125 | $868,664 | $10,973,492 |
| Screw hooks & screw rings, of iron/steel | $43,813 | $37,104 | $3,834,917 | $2,948,524 | $327,420 | $566,870 | $11,625 |
| Self-tapping screws of iron/steel | $313,500 | $535,055 | $1,243,906 | $399,651 | $265,349 | $197,157 | $234,254 |
| Screws & bolts (excl. of 7318.11-7318.14), whether or not with their nuts/w ... | $7,221,021 | $6,177,441 | $9,826,446 | $12,620,586 | $7,555,302 | $33,982,789 | $44,183,230 |
| Nuts of iron/steel | $21,332,235 | $13,991,518 | $1,973,988 | $2,231,094 | $1,924,121 | $2,175,824 | $2,673,520 |
| Threaded arts. of iron/steel (excl. of 73.07, 7318.11-7318.16) | $753,340 | $26,333,863 | $44,589,077 | $50,646,050 | $25,581,202 | $49,367,620 | $55,430,949 |
| Spring washers & oth. lock washers, of iron/steel | $38,568 | $126,047 | $172,009 | $84,417 | $183,165 | $192,619 | $243,024 |
| Washers (excl. of 7318.21) of iron/steel | $34,280 | $81,985 | $127,333 | $27,763 | $399,370 | $283,894 | $145,153 |
| Rivets of iron/steel | $15,565 | $16,159 | $11,322 | $8,429 | $67,768 | $19,477 | $74,102 |
| Cotters & cotter-pins, of iron/steel | $8,802 | $26,970 | $6,339 | $222,887 | $9,395 | $7,905 | $27,604 |
| Non-threaded arts. sim. to rivets, cotters and the like, of iron/steel (exc ... | $2,514,535 | $4,932,120 | $2,020,503 | $1,070,071 | $1,295,665 | $3,259,257 | $1,358,318 |
| Total | $34,870,783 | $56,012,919 | $65,183,387 | $70,653,363 | $38,071,114 | $91,006,695 | $115,424,028 |
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