Commodity20052006200920102011
Dictating machines not capable of op. without an ext. source of power$517,574$28,399   
Telephone answering machines$119,230 $24,781$390$1,874
Magnetic tape recorders incorp. sound repr. app., n.e.s. in 85.20$77,833$5,239   
Sound recording app., whether or not incorp. a sound repr. device, n.e.s. i ...$1,030,228$2,674,777   
Total$1,744,865$2,708,415$24,781$390$1,874