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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Roller chain of iron/steel | $878,739 | $1,471,711 | $690,592 | $1,043,750 | $910,013 | $1,205,076 | $2,337,042 |
| Articulated link chain other than roller chain, of iron/steel | $1,815,332 | $1,755,710 | $1,738,862 | $1,979,901 | $3,498,205 | $2,611,159 | $3,687,012 |
| Parts of articulated link chain of iron/steel | $524,617 | $1,005,690 | $1,043,788 | $626,337 | $1,430,971 | $857,031 | $1,117,927 |
| Skid chain of iron/steel | $5,190 | $105,118 | $23,773 | $69,732 | $16,198 | $62,401 | $464,596 |
| Stud-link chain of iron/steel | $364,307 | $171,477 | $47,557 | $205,938 | $1,422,140 | $200,216 | $196,350 |
| Welded link chain of iron/steel | $7,322,743 | $6,867,924 | $8,634,597 | $7,226,465 | $5,748,598 | $6,437,227 | $7,220,433 |
| Chain, of iron/steel, n.e.s. in 73.15 | $2,295,255 | $2,558,148 | $2,727,467 | $4,105,386 | $3,956,528 | $4,624,261 | $5,317,910 |
| Parts of chains (excl. articulated link chain), of iron/steel | $654,966 | $740,519 | $2,020,998 | $1,737,887 | $1,481,314 | $2,255,145 | $2,639,559 |
| Total | $13,861,149 | $14,676,297 | $16,927,634 | $16,995,396 | $18,463,967 | $18,252,516 | $22,980,829 |
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