Commodity2005200620072008200920102011
Dictating machines not capable of op. without an ext. source of power$327,009$9,886$199$188   
Telephone answering machines$473,562$1,042,985$777,711$143,389$88,792$43,618$16,649
Magnetic tape recorders incorp. sound repr. app., n.e.s. in 85.20$115,698$52,348$5,154$16,458   
Sound recording app., whether or not incorp. a sound repr. device, n.e.s. i ...$75,365$985,695$73,091$15,813   
Total$991,634$2,090,914$856,155$175,848$88,792$43,618$16,649