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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $42,433 | | | | $193,598 | | |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $12,966 | $18,906 | $233,376 | | | | |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | | | | | | $74,406 | |
| Casing of a kind used in drilling for oil/gas, having circular cross-sectio ... | | | | | | | $29,958 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $25,877 | $85,265 | $59,742 | $3,862 | $5,845 | $8,577 | $266,568 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | | $172,010 | $246,961 | $1,116,751 | $30,517 | $92,632 | $241,603 |
| Tubes & pipes (e.g., welded/riveted/similarly closed), having circular cros ... | $171,470 | $396,674 | $397,754 | $1,015,451 | $390,358 | $510,311 | $20,356 |
| Total | $252,746 | $672,855 | $937,833 | $2,136,064 | $620,318 | $685,926 | $558,485 |
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