Commodity200520062007200820092010
Dictating machines not capable of op. without an ext. source of power$1,389$5,373$6,172$26,451  
Telephone answering machines $833$18 $22$27
Magnetic tape recorders incorp. sound repr. app., n.e.s. in 85.20$69,366$2,374$14,548$184  
Sound recording app., whether or not incorp. a sound repr. device, n.e.s. i ...$713,341$486,781$2,342,281$3,932,202  
Total$784,096$495,361$2,363,019$3,958,837$22$27