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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 ... | $8,010,830 | $4,012,206 | $4,284,842 | $11,483,307 | $14,857,801 | $4,783,603 | $2,953,980 |
| Casing & tubing of a kind used in drilling for oil/gas, of iron/steel | $297 | $609,575 | $244,372 | $130,045 | $10,447 | $162,447 | $2,321 |
| Tubes, pipes & hollow profiles (excl. of 7306.10 & 7306.20), welded, of cir ... | $47,807,068 | $50,569,650 | $62,318,829 | $72,240,935 | $39,910,337 | $42,150,793 | $46,255,969 |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.30), welded, of circu ... | $22,090,030 | $29,657,919 | $42,537,985 | $41,926,606 | $43,177,917 | $58,057,477 | $30,868,564 |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.40), welded, of circu ... | $441,823 | $541,019 | $2,993,251 | $1,321,929 | $1,838,950 | $547,760 | $553,034 |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.50), welded, of non-c ... | $36,073,700 | $43,248,738 | $45,965,764 | $59,750,452 | $32,560,269 | $46,019,810 | $54,370,042 |
| Tubes, pipes & hollow profiles of iron (excl. cast iron)/steel, n.e.s. (exc ... | $4,480,465 | $5,798,684 | $8,440,171 | $15,610,757 | $4,110,231 | $7,461,709 | $5,807,320 |
| Total | $118,904,213 | $134,437,791 | $166,785,214 | $202,464,031 | $136,465,952 | $159,183,599 | $140,811,230 |
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