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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 ... | $14,324 | $54,592 | $89,650 | $30,922 | $60,769 | $97,750 | $150,160 |
| Casing & tubing of a kind used in drilling for oil/gas, of iron/steel | | | | $23,652 | $39,353 | $33,139 | $49,933 |
| Tubes, pipes & hollow profiles (excl. of 7306.10 & 7306.20), welded, of cir ... | $3,230,887 | $12,856,408 | $12,947,451 | $24,350,294 | $7,067,927 | $2,533,144 | $2,470,871 |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.30), welded, of circu ... | $189,293 | $1,001,221 | $1,179,766 | $684,547 | $707,343 | $937,955 | $792,977 |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.40), welded, of circu ... | $193,551 | $18,336 | $37,288 | $424,482 | $21,116 | $36,431 | $25,151 |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.50), welded, of non-c ... | $1,126,234 | $1,646,268 | $2,593,104 | $6,682,912 | $2,241,714 | $1,374,049 | $1,708,872 |
| Tubes, pipes & hollow profiles of iron (excl. cast iron)/steel, n.e.s. (exc ... | $83,093 | $105,865 | $417,424 | $579,767 | $4,418,256 | $4,527,135 | $5,272,041 |
| Total | $4,837,382 | $15,682,690 | $17,264,683 | $32,776,576 | $14,556,478 | $9,539,603 | $10,470,005 |
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