Commodity2005200620072008200920102011
Dictating machines not capable of op. without an ext. source of power$18,304$1,828$3,083    
Telephone answering machines$41,469$2,143$2,523$52,608$108,928$41,250$40,272
Magnetic tape recorders incorp. sound repr. app., n.e.s. in 85.20$222,206$63,180$20,402    
Sound recording app., whether or not incorp. a sound repr. device, n.e.s. i ...$2,083,397$749,676$246,132    
Total$2,365,376$816,827$272,140$52,608$108,928$41,250$40,272