Commodity200520062007200820102011
Dictating machines not capable of op. without an ext. source of power$17,437$12,208$36,621   
Telephone answering machines$1,237$365$335$1,725$164$8,138
Magnetic tape recorders incorp. sound repr. app., n.e.s. in 85.20$21,293$12,588$27,789   
Sound recording app., whether or not incorp. a sound repr. device, n.e.s. i ...$229,822$336,560$177,033   
Total$269,789$361,721$241,778$1,725$164$8,138