Commodity2005200620072008200920102011
Dictating machines not capable of op. without an ext. source of power$160,402$16,031     
Telephone answering machines$39,332$207,598$67,584$24,669$64,259$15,877$8,673
Magnetic tape recorders incorp. sound repr. app., n.e.s. in 85.20$46,718$43,396     
Sound recording app., whether or not incorp. a sound repr. device, n.e.s. i ...$20,907,057$34,499,220     
Total$21,153,509$34,766,245$67,584$24,669$64,259$15,877$8,673