Commodity2005200620072008200920102011
Line pipe (excl. seamless), of a kind used for oil/gas pipelines, of iron/s ...$383,029  $144,688$63,700$5,758 
Casing & tubing of a kind used in drilling for oil/gas, of iron/steel  $40,938$7,045$349,003$22,535$15,141
Tubes, pipes & hollow profiles (excl. of 7306.10 & 7306.20), welded, of cir ...$868,787$693,210$680,779$2,053,295$1,567,287$1,343,075$375,123
Tubes, pipes & hollow profiles (excl. of 7306.10-7306.30), welded, of circu ...$71,501$133,774$221,015$99,517$783,117$71,082$1,757,872
Tubes, pipes & hollow profiles (excl. of 7306.10-7306.40), welded, of circu ...$363,662$224,046$21,929$148,727$801,952$571,171$289,065
Tubes, pipes & hollow profiles (excl. of 7306.10-7306.50), welded, of non-c ...$176,965$555,883$195,559$184,644$116,780$63,079$124,127
Tubes, pipes & hollow profiles of iron (excl. cast iron)/steel, n.e.s. (exc ...$540,517$1,102,742$768,449$9,506,046$25,634,498$33,152,504$39,959,007
Total$2,404,461$2,709,655$1,928,669$12,143,962$29,316,337$35,229,204$42,520,335