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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Coach screws of iron/steel | $1,301,015 | $1,498,323 | $2,021,125 | $2,168,805 | $1,467,440 | $2,492,783 | $5,290,640 |
| Wood screws other than coach screws, of iron/steel | $2,916,322 | $2,887,119 | $3,113,551 | $4,240,813 | $1,648,483 | $2,727,338 | $4,890,510 |
| Screw hooks & screw rings, of iron/steel | $71,135 | $53,650 | $77,911 | $99,059 | $137,854 | $169,850 | $248,542 |
| Self-tapping screws of iron/steel | $1,907,420 | $2,066,724 | $3,017,909 | $3,586,098 | $3,089,966 | $4,249,512 | $4,637,028 |
| Screws & bolts (excl. of 7318.11-7318.14), whether or not with their nuts/w ... | $42,688,529 | $55,045,996 | $72,562,714 | $89,298,474 | $61,133,004 | $88,035,005 | $118,046,245 |
| Nuts of iron/steel | $17,800,522 | $20,624,209 | $26,490,488 | $34,703,973 | $22,554,201 | $34,333,877 | $38,623,124 |
| Threaded arts. of iron/steel (excl. of 73.07, 7318.11-7318.16) | $1,757,693 | $2,160,264 | $3,192,766 | $3,606,063 | $2,589,574 | $4,171,500 | $6,767,080 |
| Spring washers & oth. lock washers, of iron/steel | $1,667,956 | $1,511,366 | $2,505,492 | $2,892,718 | $1,795,208 | $3,056,703 | $3,204,772 |
| Washers (excl. of 7318.21) of iron/steel | $5,337,627 | $6,803,825 | $8,204,971 | $10,554,370 | $7,183,846 | $9,128,043 | $12,172,201 |
| Rivets of iron/steel | $780,939 | $1,200,354 | $1,273,915 | $1,687,750 | $1,070,712 | $1,693,391 | $2,118,878 |
| Cotters & cotter-pins, of iron/steel | $2,853,160 | $3,273,621 | $3,850,031 | $4,168,668 | $3,378,321 | $5,424,886 | $7,168,396 |
| Non-threaded arts. sim. to rivets, cotters and the like, of iron/steel (exc ... | $2,172,177 | $3,478,445 | $3,340,557 | $4,706,537 | $3,676,428 | $5,863,786 | $7,025,086 |
| Total | $81,254,495 | $100,603,896 | $129,651,430 | $161,713,328 | $109,725,037 | $161,346,674 | $210,192,502 |
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