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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 ... | $313,178 | $15,795 | $316,003 | $511,163 | $475,857 | $174,307 | $257,179 |
| Casing & tubing of a kind used in drilling for oil/gas, of iron/steel | $118,488 | $258,147 | $450,364 | $42,213 | $7,057 | $3,291 | $488,461 |
| Tubes, pipes & hollow profiles (excl. of 7306.10 & 7306.20), welded, of cir ... | $2,809,220 | $2,874,856 | $2,656,429 | $4,259,942 | $5,620,625 | $3,949,662 | $8,821,319 |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.30), welded, of circu ... | $64,085 | $37,054 | $135,679 | $36,395 | $181,380 | $138,874 | $51,177 |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.40), welded, of circu ... | | $75,080 | $110,076 | $333,675 | $383,329 | $304,417 | $868,740 |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.50), welded, of non-c ... | $794,645 | $946,831 | $2,059,193 | $2,624,065 | $6,251,800 | $7,991,438 | $12,836,464 |
| Tubes, pipes & hollow profiles of iron (excl. cast iron)/steel, n.e.s. (exc ... | $197,995 | $601,113 | $2,216,827 | $1,371,008 | $852,883 | $387,526 | $1,720,036 |
| Total | $4,297,611 | $4,808,876 | $7,944,571 | $9,178,461 | $13,772,931 | $12,949,515 | $25,043,376 |
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