Commodity2005200620072008
Artificial guts (sausage casings) of hardened protein/of cellulosic mats$11,299$796$3,142$1,306
Tubes, pipes & hoses, rigid, of polymers of ethylene$424,698$2,326,271$174,539$909,798
Tubes, pipes & hoses, rigid, of polymers of propylene$8,314$56,595$11,514$27,570
Tubes, pipes & hoses, rigid, of polymers of vinyl chloride$471,603$462,965$289,728$579,897
Tubes, pipes & hoses, rigid, of plastics n.e.s. in 39.17$736,790$108,216$59,860$102,674
Flexible tubes, pipes & hoses of plastics, having a minimum burst pressure ...$7,323$13,082$18,710$21,099
Tubes, pipes & hoses of plastics (excl. of 3917.31), not reinf./othw. combi ... $8$3,740$24,460
Tubes, pipes & hoses of plastics (excl. of 3917.31 & 3917.32), not reinf./o ...$7,047$123,027  
Tubes, pipes & hoses of plastics, n.e.s. (excl. of 3917.21-3917.33)$1,206,394$766,966$1,520,696$697,819
Fittings (e.g., joints, elbows, flanges) for tubes, pipes & hoses, of plast ...$341,182$232,687$106,662$481,510
Total$3,214,650$4,090,613$2,188,591$2,846,133