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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 ... | | | | $9,029 | | | |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $54,930 | $5,410 | | $406,432 | $1,545 | $52,164 | $100,003 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $1,430,261 | $9,917 | $566 | $7,742,256 | $37,525 | $2,352 | $824 |
| Casing of a kind used in drilling for oil/gas, having circular cross-sectio ... | | | | $1,025 | $43,669 | $14,457 | |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $1,891,550 | $704,770 | $880,534 | $326,151 | $180,760 | $3,729,966 | $3,899,125 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $589,928 | $391,135 | $1,173,999 | $485,675 | $193,108 | $1,186,089 | $1,815,342 |
| Tubes & pipes (e.g., welded/riveted/similarly closed), having circular cros ... | $901,402 | $54,947 | $134,978 | $126,944 | $71,987 | $353,148 | $176,701 |
| Total | $4,868,071 | $1,166,179 | $2,190,077 | $9,097,512 | $528,594 | $5,338,176 | $5,991,995 |
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