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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | | | $132,257 | $67,919 | | $873,439,754 | $1,089,059,661 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | | | | | | | $52,658 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $13,061,439 | $18,648,681 | $43,710,617 | $24,916,077 | | | $9,423 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $3,217,336 | $4,236,690 | $4,844,975 | $9,682,899 | $4,344,013 | $6,247,247 | $7,889,854 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $19,154,829 | $12,825,764 | $12,679,914 | $21,702,567 | | $15,372,057 | $20,018,059 |
| Tubes & pipes (e.g., welded/riveted/similarly closed), having circular cros ... | $258,989 | $253,684 | $509,914 | $5,535 | $100,191 | $258,872 | $239,084 |
| Total | $35,692,593 | $35,964,819 | $61,877,677 | $56,374,997 | $4,444,204 | $895,317,930 | $1,117,268,739 |
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