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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $214,419,720 | $218,270,650 | $205,326,607 | $696,379,850 | $1,539,262,972 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $107,819,178 | $22,140,014 | $16,278,317 | $71,134,132 | $9,735,231 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $3,577,212 | $106,452,205 | $34,346,066 | $525,909,510 | $695,018,982 |
| Casing of a kind used in drilling for oil/gas, having circular cross-sectio ... | | $2,993,863 | $408,316 | $2,494,597 | |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $14,118,215 | $33,602,439 | $77,369,624 | $52,751,258 | $42,527,348 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $320,336 | $3,251,423 | $5,463,310 | $7,146,742 | $4,197,401 |
| Tubes & pipes (e.g., welded/riveted/similarly closed), having circular cros ... | $151,344 | $1,805,887 | $4,632,091 | $2,733,331 | $514,287 |
| Total | $340,406,005 | $388,516,481 | $343,824,331 | $1,358,549,420 | $2,291,256,221 |
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