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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 ... | $71,435,000 | $70,518,000 | $59,439,000 | $82,571,000 | $74,507,000 | $58,406,477 | $85,701,045 |
| Casing & tubing of a kind used in drilling for oil/gas, of iron/steel | $1,845,000 | | $22,980,000 | $310,000 | $154,000 | $337,839 | $880,731 |
| Tubes, pipes & hollow profiles (excl. of 7306.10 & 7306.20), welded, of cir ... | $542,006,000 | $685,070,000 | $844,231,000 | $1,013,897,000 | $541,938,000 | $642,553,392 | $903,004,910 |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.30), welded, of circu ... | $319,837,000 | $415,278,000 | $605,555,000 | $535,710,000 | $334,439,000 | $435,110,702 | $601,536,979 |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.40), welded, of circu ... | $16,890,000 | $15,534,000 | $8,899,000 | $8,326,000 | $5,722,000 | $9,058,072 | $16,807,756 |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.50), welded, of non-c ... | $511,674,000 | $710,682,000 | $811,338,000 | $975,102,000 | $494,078,000 | $680,762,370 | $945,701,699 |
| Tubes, pipes & hollow profiles of iron (excl. cast iron)/steel, n.e.s. (exc ... | $28,822,000 | $35,473,000 | $11,460,000 | $32,354,000 | $25,161,000 | $28,224,829 | $33,434,385 |
| Total | $1,492,509,000 | $1,932,555,000 | $2,363,902,000 | $2,648,270,000 | $1,475,999,000 | $1,854,453,681 | $2,587,067,505 |
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