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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | | $900 | | $163 | | $135,473 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $45,880 | $19,680 | $6,054,870 | $671,756 | $132,529 | $545,647 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $6,473 | $102,932 | $787,107 | $24,802,265 | $209,392 | $12,535,460 |
| Casing of a kind used in drilling for oil/gas, having circular cross-sectio ... | $467,446 | $3,229,065 | $6,457,257 | $6,015,660 | $589,966 | $1,651,362 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $369,888 | $67,497 | $3,306,755 | $7,056,008 | $4,255,202 | $424,955 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | | $406,252 | $64,416 | $32,470 | $820,170 | $2,316,141 |
| Tubes & pipes (e.g., welded/riveted/similarly closed), having circular cros ... | $610,942 | $903,078 | $15,752 | $230,941 | $165,859 | $7,072 |
| Total | $1,500,629 | $4,729,404 | $16,686,157 | $38,809,263 | $6,173,118 | $17,616,110 |
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