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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Coach screws of iron/steel | $15,049,927 | $9,638,953 | $41,398,252 | $107,564,528 | $84,658,571 | $123,099,052 | $149,314,859 |
| Wood screws other than coach screws, of iron/steel | $381,486 | $379,887 | $194,668 | $611,812 | $443,265 | $395,585 | $563,936 |
| Screw hooks & screw rings, of iron/steel | $3,669,014 | $1,367,038 | $558,326 | $618,501 | $233,418 | $539,722 | $425,260 |
| Self-tapping screws of iron/steel | $200,254 | $86,353 | $18,193 | $146,660 | $321,698 | $210,130 | $1,529,228 |
| Screws & bolts (excl. of 7318.11-7318.14), whether or not with their nuts/w ... | $107,428,259 | $106,606,797 | $109,180,415 | $139,066,047 | $81,193,482 | $111,644,006 | $184,817,512 |
| Nuts of iron/steel | $35,463,776 | $34,608,197 | $26,330,168 | $33,403,402 | $15,896,841 | $26,028,500 | $49,943,054 |
| Threaded arts. of iron/steel (excl. of 73.07, 7318.11-7318.16) | $15,841,806 | $13,699,944 | $21,511,309 | $32,303,602 | $22,288,601 | $40,815,089 | $67,923,587 |
| Spring washers & oth. lock washers, of iron/steel | $689,630 | $2,263,702 | $3,104,091 | $4,781,879 | $1,812,023 | $3,348,330 | $6,763,725 |
| Washers (excl. of 7318.21) of iron/steel | $10,476,796 | $11,056,603 | $12,629,591 | $17,793,808 | $14,422,292 | $18,285,235 | $31,454,714 |
| Rivets of iron/steel | $544,300 | $769,129 | $1,347,744 | $872,733 | $1,017,626 | $1,734,272 | $2,211,576 |
| Cotters & cotter-pins, of iron/steel | $695,494 | $2,003,790 | $2,452,106 | $1,101,714 | $884,958 | $1,480,129 | $1,893,319 |
| Non-threaded arts. sim. to rivets, cotters and the like, of iron/steel (exc ... | $8,973,650 | $10,589,975 | $14,038,509 | $19,354,990 | $10,178,797 | $20,184,112 | $36,545,757 |
| Total | $199,414,392 | $193,070,368 | $232,763,372 | $357,619,676 | $233,351,572 | $347,764,162 | $533,386,527 |
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