Commodity20052006200720082010
Dictating machines not capable of op. without an ext. source of power$4,815,016$5,533,498   
Telephone answering machines$56,987$2,286$13,277$6,578$5,094
Magnetic tape recorders incorp. sound repr. app., n.e.s. in 85.20$353,585$88,114   
Sound recording app., whether or not incorp. a sound repr. device, n.e.s. i ...$101,089,172$50,132,250   
Total$106,314,760$55,756,148$13,277$6,578$5,094