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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 ... | $2,774,000 | | $18,000 | $4,650,000 | $2,000 | $28,000 | $204,000 |
| Casing & tubing of a kind used in drilling for oil/gas, of iron/steel | $45,000 | | | | | $4,000 | $1,000 |
| Tubes, pipes & hollow profiles (excl. of 7306.10 & 7306.20), welded, of cir ... | $18,375,000 | $24,897,000 | $30,122,000 | $34,929,000 | $24,037,000 | $34,295,000 | $44,379,000 |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.30), welded, of circu ... | $2,073,000 | $2,429,000 | $5,348,000 | $5,942,000 | $2,945,000 | $5,274,000 | $12,172,000 |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.40), welded, of circu ... | $336,000 | $323,000 | $284,000 | $301,000 | $864,000 | $1,184,000 | $465,000 |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.50), welded, of non-c ... | $41,416,000 | $55,528,000 | $48,969,000 | $75,745,000 | $32,607,000 | $58,111,000 | $72,143,000 |
| Tubes, pipes & hollow profiles of iron (excl. cast iron)/steel, n.e.s. (exc ... | $1,453,000 | $1,709,000 | $1,891,000 | $2,005,000 | $1,202,000 | $1,061,000 | $2,735,000 |
| Total | $66,472,000 | $84,886,000 | $86,632,000 | $123,572,000 | $61,657,000 | $99,957,000 | $132,099,000 |
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