Commodity200520062007200820092010
Drafting tables & machines, whether or not auto.$931$217$2,740 $34 
Drawing/marking-out/mathematical calculating instr. other than drafting tab ...$18,527$35,245$3,717$15,270$9,126$12,026
Micrometers, callipers & gauges$34 $1,923$361$1,395 
Instruments for meas. length, for use in the hand (e.g., meas. rods & tapes ...$49,465$25,059$30,451$40,018$6,326$7,544
Parts & accessories of the instr. of 90.17   $3,636$4,011$127,126
Total$68,957$60,521$38,831$59,285$20,892$146,696