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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Roller chain of iron/steel | $1,188,896 | $1,739,572 | $1,674,234 | $1,856,094 | $1,220,337 | $1,175,309 | $1,377,084 |
| Articulated link chain other than roller chain, of iron/steel | $9,932,337 | $11,316,480 | $14,653,776 | $17,378,529 | $10,258,172 | $12,400,393 | $14,938,634 |
| Parts of articulated link chain of iron/steel | $366,902 | $492,852 | $509,507 | $597,518 | $537,758 | $758,886 | $1,247,226 |
| Skid chain of iron/steel | $8,933,535 | $9,238,281 | $10,863,160 | $8,819,469 | $5,021,294 | $7,462,366 | $9,871,988 |
| Stud-link chain of iron/steel | $38,962 | $30,609 | $16,716 | $1,866 | $14,710 | | $1,680 |
| Welded link chain of iron/steel | $802,701 | $895,288 | $1,655,635 | $1,156,410 | $728,178 | $732,916 | $1,117,322 |
| Chain, of iron/steel, n.e.s. in 73.15 | $199,778 | $344,005 | $959,287 | $359,896 | $278,101 | $291,821 | $1,014,857 |
| Parts of chains (excl. articulated link chain), of iron/steel | $538,173 | $428,680 | $986,986 | $836,168 | $783,562 | $892,018 | $1,159,364 |
| Total | $22,001,284 | $24,485,767 | $31,319,301 | $31,005,950 | $18,842,112 | $23,713,709 | $30,728,155 |
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