Commodity2005200620072008200920102011
Dictating machines not capable of op. without an ext. source of power$729$198,065$2,562    
Telephone answering machines$9,907$40,544$868$44$2,935$935$3,041
Magnetic tape recorders incorp. sound repr. app., n.e.s. in 85.20$29,610$128,900$39,656    
Sound recording app., whether or not incorp. a sound repr. device, n.e.s. i ...$208,770$120,641$2,435,435    
Total$249,016$488,150$2,478,521$44$2,935$935$3,041