Commodity200520062007200820092010
Artificial guts (sausage casings) of hardened protein/of cellulosic mats $248$101,982$37,085$9,141$2,353
Tubes, pipes & hoses, rigid, of polymers of ethylene$149,569$1,328,454$7,589$21,659$359 
Tubes, pipes & hoses, rigid, of polymers of propylene$7,064$3,310$350 $4,170 
Tubes, pipes & hoses, rigid, of polymers of vinyl chloride$680,391$358,408$375,386$165,464$189,695$173,701
Tubes, pipes & hoses, rigid, of plastics n.e.s. in 39.17$6,324$1,295$4,210$3,001$1,465$72
Flexible tubes, pipes & hoses of plastics, having a minimum burst pressure ...$807$80 $743$50$756
Tubes, pipes & hoses of plastics (excl. of 3917.31), not reinf./othw. combi ...$629,586$1,662,892$1,275,219$981,561$1,133,434$1,250,344
Tubes, pipes & hoses of plastics (excl. of 3917.31 & 3917.32), not reinf./o ...$602,106$563,277$541,701$667,962$567,118$832,071
Tubes, pipes & hoses of plastics, n.e.s. (excl. of 3917.21-3917.33)$37,097$8,353$5,087$5,924$9,260$9,038
Fittings (e.g., joints, elbows, flanges) for tubes, pipes & hoses, of plast ...$164,126$191,390$116,439$81,820$69,197$136,997
Total$2,277,070$4,117,707$2,427,963$1,965,219$1,983,889$2,405,332