Commodity2005200620072008200920102011
Dictating machines not capable of op. without an ext. source of power$50,366$21,430     
Telephone answering machines$930$16,981$181$1,871$13$804$145
Magnetic tape recorders incorp. sound repr. app., n.e.s. in 85.20$85,667$47,347     
Sound recording app., whether or not incorp. a sound repr. device, n.e.s. i ...$1,000,022$1,526,793     
Total$1,136,985$1,612,551$181$1,871$13$804$145