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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Line pipe (excl. seamless), of a kind used for oil/gas pipelines, of iron/s ... | $1,983,407 | $4,355,072 | $2,950,899 | $14,779,435 | $8,703,676 | $3,840,197 | $3,680,178 |
| Casing & tubing of a kind used in drilling for oil/gas, of iron/steel | | | $8,809 | $8,121 | $2,109 | $731 | $1,350 |
| Tubes, pipes & hollow profiles (excl. of 7306.10 & 7306.20), welded, of cir ... | $81,159,519 | $96,648,385 | $103,453,504 | $125,715,967 | $63,098,549 | $94,125,831 | $110,114,015 |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.30), welded, of circu ... | $34,135,795 | $44,687,967 | $55,420,238 | $66,803,065 | $45,118,329 | $51,317,020 | $77,659,270 |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.40), welded, of circu ... | $1,656,829 | $43,206 | $129,582 | $118,443 | $50,824 | $306,211 | $910,659 |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.50), welded, of non-c ... | $18,304,466 | $19,981,603 | $23,818,452 | $32,635,882 | $17,871,339 | $26,906,961 | $37,130,527 |
| Tubes, pipes & hollow profiles of iron (excl. cast iron)/steel, n.e.s. (exc ... | $1,953,554 | $3,887,704 | $5,832,012 | $7,516,180 | $7,064,285 | $4,536,974 | $4,595,060 |
| Total | $139,193,570 | $169,603,937 | $191,613,496 | $247,577,093 | $141,909,111 | $181,033,925 | $234,091,059 |
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