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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 ... | $943,267 | $417,760 | $662,189 | $125,261 | $1,157,017 | $666,274 | $707,630 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $652,762 | $115,201 | $720,810 | $2,870,576 | $484,004 | $2,285,936 | $1,321,521 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $141,892 | $511 | $351,719 | $573,560 | $46,990 | $1,893,331 | $24,049 |
| Casing of a kind used in drilling for oil/gas, having circular cross-sectio ... | $62 | $99 | $82 | $50 | | | |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $156,079 | $717,624 | $2,413,796 | $1,704,925 | $623,426 | $706,423 | $1,674,072 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $147,063 | $297,498 | $3,261,987 | $38,532 | $61,292 | $63,464 | $2,379,567 |
| Tubes & pipes (e.g., welded/riveted/similarly closed), having circular cros ... | $272,015 | $433,296 | $874,675 | $229,163 | $466,047 | $264,998 | $759,670 |
| Total | $2,313,140 | $1,981,989 | $8,285,258 | $5,542,067 | $2,838,776 | $5,880,426 | $6,866,509 |
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