Commodity2005200620072008200920102011
Dictating machines not capable of op. without an ext. source of power$536,875$488 $43,939   
Telephone answering machines$7,641$11,877$28,677$11,977$710,755$79$37,937
Magnetic tape recorders incorp. sound repr. app., n.e.s. in 85.20$163,736$132,835     
Sound recording app., whether or not incorp. a sound repr. device, n.e.s. i ...$165,206$1,063,620     
Total$873,458$1,208,820$28,677$55,916$710,755$79$37,937