Commodity200520062007200820092010
Dictating machines not capable of op. without an ext. source of power$11,778$8,117$3,013$530  
Telephone answering machines $2,719 $2,096$1,135 
Magnetic tape recorders incorp. sound repr. app., n.e.s. in 85.20$39,511$82,343$93,975$18,005$8,867$1,989
Sound recording app., whether or not incorp. a sound repr. device, n.e.s. i ...$82,297$69,512$175,068$42,898$16,711 
Total$133,586$162,691$272,056$63,529$26,713$1,989