Commodity200520062007200820102011
Pile-drivers & pile-extractors    $59,080 
Coal/rock cutters & tunnelling mach., self-propelled  $285 $2,242 
Boring/sinking mach. (excl. of 8430.10-8430.40), self-propelled   $160,542 $142,584
Tamping/compacting mach., not self-propelled$3,800$8,000$2,180$23,500$1,849$315,347
Total$3,800$8,000$2,465$184,042$63,171$457,931