Commodity2005200620072008200920102011
Dictating machines not capable of op. without an ext. source of power$111$139     
Telephone answering machines$254,997$303,192$64,504$9,185$7,934$12,630$1,393
Magnetic tape recorders incorp. sound repr. app., n.e.s. in 85.20$39,102$2,354     
Sound recording app., whether or not incorp. a sound repr. device, n.e.s. i ...$1,140,225$1,304,047     
Total$1,434,435$1,609,732$64,504$9,185$7,934$12,630$1,393