Commodity2005200620072008
Drafting tables & machines, whether or not auto.$1,350$1,861$339 
Drawing/marking-out/mathematical calculating instr. other than drafting tab ...$1,922$4,838$744$1,129
Micrometers, callipers & gauges$12,427$26,418$43,673$6,082
Instruments for meas. length, for use in the hand (e.g., meas. rods & tapes ...$4,800$8,268$36,177$67,017
Parts & accessories of the instr. of 90.17$14,321$629$721$1,202
Total$34,820$42,014$81,654$75,430