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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Coach screws of iron/steel | $5,276,571 | $5,471,078 | $7,753,415 | $12,693,704 | $6,729,504 | $8,938,928 | $13,578,321 |
| Wood screws other than coach screws, of iron/steel | $87,240 | $125,416 | $158,065 | $517,025 | $430,741 | $1,042,258 | $1,409,005 |
| Screw hooks & screw rings, of iron/steel | $353,789 | $275,116 | $525,178 | $500,224 | $419,055 | $1,053,828 | $745,186 |
| Self-tapping screws of iron/steel | $1,236,843 | $2,188,536 | $3,021,873 | $4,368,994 | $5,056,993 | $5,633,669 | $8,493,575 |
| Screws & bolts (excl. of 7318.11-7318.14), whether or not with their nuts/w ... | $59,630,463 | $70,333,439 | $95,911,325 | $166,384,243 | $128,577,256 | $198,869,411 | $262,493,015 |
| Nuts of iron/steel | $21,650,165 | $26,451,960 | $33,003,398 | $46,090,840 | $39,795,968 | $64,034,544 | $80,996,936 |
| Threaded arts. of iron/steel (excl. of 73.07, 7318.11-7318.16) | $15,588,920 | $16,754,577 | $29,065,813 | $41,111,814 | $65,094,015 | $53,931,029 | $78,488,892 |
| Spring washers & oth. lock washers, of iron/steel | $2,920,674 | $3,057,139 | $3,947,848 | $4,230,386 | $3,313,389 | $7,572,016 | $9,039,424 |
| Washers (excl. of 7318.21) of iron/steel | $10,353,584 | $7,650,081 | $9,280,337 | $14,276,662 | $14,756,101 | $24,294,435 | $30,870,683 |
| Rivets of iron/steel | $3,641,319 | $7,586,037 | $7,470,063 | $9,851,542 | $9,824,627 | $12,379,889 | $12,333,947 |
| Cotters & cotter-pins, of iron/steel | $515,083 | $476,286 | $649,304 | $1,037,259 | $764,931 | $1,505,599 | $2,273,170 |
| Non-threaded arts. sim. to rivets, cotters and the like, of iron/steel (exc ... | $21,789,055 | $27,735,550 | $40,130,908 | $66,823,651 | $81,018,000 | $136,641,138 | $174,897,815 |
| Total | $143,043,706 | $168,105,215 | $230,917,527 | $367,886,344 | $355,780,580 | $515,896,744 | $675,619,969 |
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