Commodity2005200620072008200920102011
Dictating machines not capable of op. without an ext. source of power$159,463$99,179     
Telephone answering machines$23,346$21,873$81,546$69,878$51,282$12,681$26,736
Magnetic tape recorders incorp. sound repr. app., n.e.s. in 85.20$73,979$76,364     
Sound recording app., whether or not incorp. a sound repr. device, n.e.s. i ...$10,333,981$11,491,679     
Total$10,590,769$11,689,095$81,546$69,878$51,282$12,681$26,736