Commodity2005200620072008200920102011
Dictating machines not capable of op. without an ext. source of power$267$127$32  $696$5,412
Telephone answering machines$11,263  $1,855$764$4,022 
Magnetic tape recorders incorp. sound repr. app., n.e.s. in 85.20$1,002 $1,897$267 $169$154
Sound recording app., whether or not incorp. a sound repr. device, n.e.s. i ...$8,093$1,187$178 $373$34$1,485
Total$20,625$1,314$2,107$2,122$1,137$4,921$7,051