Commodity200520062007200820092010
Dictating machines not capable of op. without an ext. source of power$345,617$218,254    
Telephone answering machines$782,946$817,298$767,497$475,291$498,246$356,051
Magnetic tape recorders incorp. sound repr. app., n.e.s. in 85.20$224,204$167,635    
Sound recording app., whether or not incorp. a sound repr. device, n.e.s. i ...$46,413,018$73,085,679    
Total$47,765,785$74,288,866$767,497$475,291$498,246$356,051