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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Coach screws of iron/steel | $3,874,930 | $8,271,462 | $27,591,159 | $45,829,844 | $13,403,960 | $12,146,988 | $4,456,104 |
| Wood screws other than coach screws, of iron/steel | $24,579,481 | $24,789,881 | $30,047,173 | $49,248,209 | $39,222,698 | $67,096,501 | $77,542,570 |
| Screw hooks & screw rings, of iron/steel | $7,151,543 | $8,124,359 | $8,369,920 | $10,243,375 | $9,036,025 | $10,840,030 | $13,428,565 |
| Self-tapping screws of iron/steel | $28,228,116 | $33,951,489 | $40,912,786 | $40,037,615 | $33,028,246 | $40,031,733 | $44,342,595 |
| Screws & bolts (excl. of 7318.11-7318.14), whether or not with their nuts/w ... | $875,682,991 | $997,887,795 | $1,224,937,542 | $1,248,894,853 | $814,641,806 | $996,032,028 | $1,258,563,778 |
| Nuts of iron/steel | $70,289,868 | $86,014,041 | $107,230,009 | $119,368,274 | $90,281,761 | $116,938,470 | $142,133,713 |
| Threaded arts. of iron/steel (excl. of 73.07, 7318.11-7318.16) | $61,891,614 | $80,752,342 | $115,067,899 | $121,030,609 | $78,633,600 | $113,055,499 | $138,567,263 |
| Spring washers & oth. lock washers, of iron/steel | $34,109,437 | $34,686,816 | $42,414,961 | $47,218,539 | $25,205,357 | $35,742,528 | $46,193,962 |
| Washers (excl. of 7318.21) of iron/steel | $19,514,471 | $24,457,422 | $35,175,837 | $37,870,999 | $28,942,363 | $40,361,149 | $51,469,093 |
| Rivets of iron/steel | $5,573,717 | $6,918,159 | $7,551,219 | $7,949,171 | $5,021,398 | $7,370,710 | $8,268,235 |
| Cotters & cotter-pins, of iron/steel | $6,495,846 | $7,422,899 | $9,898,288 | $9,704,114 | $6,715,378 | $8,269,240 | $11,034,141 |
| Non-threaded arts. sim. to rivets, cotters and the like, of iron/steel (exc ... | $27,544,253 | $37,507,893 | $56,904,331 | $66,545,483 | $44,819,030 | $67,882,715 | $102,652,148 |
| Total | $1,164,936,267 | $1,350,784,558 | $1,706,101,124 | $1,803,941,085 | $1,188,951,622 | $1,515,767,591 | $1,898,652,167 |
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