Commodity20052007200920102011
Electrostatic photocopying app. op. by repr. the original image directly on ...$6,419$5,900$25,043$32,548 
Photocopying app. (excl. electrostatic) incorp. an optical system    $99
Photocopying app. (excl. electrostatic) of the contact type    $444
Thermo-copying app.  $44  
Total$6,419$5,900$25,087$32,548$543