Commodity200520062007200820092010
Dictating machines not capable of op. without an ext. source of power$7,715$120,684$8,460   
Telephone answering machines$10,479$1,836$29,200$3,381$7,139$9,459
Magnetic tape recorders incorp. sound repr. app., n.e.s. in 85.20$117,224$67,018    
Sound recording app., whether or not incorp. a sound repr. device, n.e.s. i ...$71,605$66,111$20,699   
Total$207,023$255,649$58,359$3,381$7,139$9,459