Commodity2005200620072008200920102011
Drafting tables & machines, whether or not auto.$50$50 $276$3,600$32,501$14,923
Drawing/marking-out/mathematical calculating instr. other than drafting tab ...$62,377$34,332$22,665$63,582$89,762$78,249$115,001
Micrometers, callipers & gauges$6,897$2,869$4,706$29,270$13,192$23,136$2,583
Instruments for meas. length, for use in the hand (e.g., meas. rods & tapes ...$17,191$7,741$10,964$47,138$32,926$6,049$17,234
Parts & accessories of the instr. of 90.17$1,556$631 $10$8,485$480 
Total$88,071$45,623$38,335$140,276$147,965$140,415$149,741