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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 ... | $3,661,441 | $7,294,000 | $4,455,315 | $1,355,635 | $1,865,333 | $294,590 | $451,435 |
| Casing & tubing of a kind used in drilling for oil/gas, of iron/steel | $67,619 | $101,964 | $425,228 | $430,963 | $45,833 | $15,969 | $576,921 |
| Tubes, pipes & hollow profiles (excl. of 7306.10 & 7306.20), welded, of cir ... | $17,921,744 | $18,475,317 | $28,371,175 | $47,548,677 | $15,911,722 | $14,608,612 | $16,487,681 |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.30), welded, of circu ... | $5,350,104 | $5,627,043 | $7,428,905 | $10,469,646 | $3,703,810 | $2,998,605 | $6,270,720 |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.40), welded, of circu ... | $2,713,752 | $2,099,328 | $4,287,909 | $2,433,516 | $578,974 | $207,763 | $817,404 |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.50), welded, of non-c ... | $29,261,567 | $35,122,710 | $39,249,792 | $35,837,711 | $14,597,633 | $20,565,308 | $18,943,851 |
| Tubes, pipes & hollow profiles of iron (excl. cast iron)/steel, n.e.s. (exc ... | $722,747 | $2,218,237 | $2,123,294 | $8,648,804 | $2,929,052 | $3,118,078 | $5,493,545 |
| Total | $59,698,974 | $70,938,599 | $86,341,618 | $106,724,952 | $39,632,357 | $41,808,925 | $49,041,557 |
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