Commodity200520062007200820092010
Drafting tables & machines, whether or not auto. $5,636$2,034  $2,081
Drawing/marking-out/mathematical calculating instr. other than drafting tab ...     $4,099
Micrometers, callipers & gauges    $520$9,893
Instruments for meas. length, for use in the hand (e.g., meas. rods & tapes ...   $5,066$3,795$8,843
Parts & accessories of the instr. of 90.17$2,619$3,280  $14,276 
Total$2,619$8,916$2,034$5,066$18,591$24,916