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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Line pipe (excl. seamless), of a kind used for oil/gas pipelines, of iron/s ... | $234,351 | $22,010,783 | $4,145,652 | $2,149,696 | $13,499,180 | $7,961,561 | $13,056,367 |
| Casing & tubing of a kind used in drilling for oil/gas, of iron/steel | $1,239 | $41,792 | $76,761 | $227,209 | $57,485 | $107,179 | $517,679 |
| Tubes, pipes & hollow profiles (excl. of 7306.10 & 7306.20), welded, of cir ... | $11,244,476 | $11,322,257 | $17,065,461 | $23,477,427 | $11,517,783 | $16,391,195 | $21,218,880 |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.30), welded, of circu ... | $13,014,308 | $18,386,446 | $38,911,640 | $43,974,283 | $20,746,035 | $24,181,951 | $31,950,755 |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.40), welded, of circu ... | $4,855,726 | $6,419,931 | $5,171,827 | $6,474,550 | $2,265,915 | $3,421,409 | $6,815,204 |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.50), welded, of non-c ... | $2,869,344 | $5,207,631 | $4,251,786 | $4,813,836 | $1,445,485 | $5,245,114 | $5,659,232 |
| Tubes, pipes & hollow profiles of iron (excl. cast iron)/steel, n.e.s. (exc ... | $4,628,580 | $4,427,761 | $5,800,432 | $7,008,967 | $5,090,437 | $5,128,749 | $7,327,641 |
| Total | $36,848,024 | $67,816,601 | $75,423,559 | $88,125,968 | $54,622,320 | $62,437,158 | $86,545,758 |
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