Commodity2005200620072008200920102011
Dictating machines not capable of op. without an ext. source of power$758,695$764,895     
Telephone answering machines$470,166$441,003$418,912$371,939$425,319$93,913$114,242
Magnetic tape recorders incorp. sound repr. app., n.e.s. in 85.20$286,252$809,457     
Sound recording app., whether or not incorp. a sound repr. device, n.e.s. i ...$63,702,514$74,483,878     
Total$65,217,627$76,499,233$418,912$371,939$425,319$93,913$114,242