Commodity200520062007200820092010
Electrostatic photocopying app. op. by repr. the original image directly on ...$950$19,269$2,586 $392 
Electrostatic photocopying app. op. by repr. the original image via an inte ...   $1,860 $4,518
Photocopying app. (excl. electrostatic) incorp. an optical system$453$14,880$292 $973$40
Photocopying app. (excl. electrostatic) of the contact type$765$22,397$35,080$7,528$13,295$22,210
Thermo-copying app.$3,215     
Total$5,383$56,546$37,958$9,388$14,660$26,768