Commodity2005200620072008200920102011
Dictating machines not capable of op. without an ext. source of power$3,733$3,532     
Telephone answering machines$4,121,941$1,282,565$4,001,585$895,321$218,925$119,962$135,020
Magnetic tape recorders incorp. sound repr. app., n.e.s. in 85.20$83$440     
Sound recording app., whether or not incorp. a sound repr. device, n.e.s. i ...$4,458,007$4,116,936     
Total$8,583,764$5,403,473$4,001,585$895,321$218,925$119,962$135,020