Commodity200520062007200820092010
Drafting tables & machines, whether or not auto. $331  $1$1
Drawing/marking-out/mathematical calculating instr. other than drafting tab ...$32,673$16,414$19,622$17,545$29,430$34,556
Micrometers, callipers & gauges$5,579$8,503$10,298$11,309$13,170$27,229
Instruments for meas. length, for use in the hand (e.g., meas. rods & tapes ...$18,153$18,383$41,049$16,890$19,419$25,682
Parts & accessories of the instr. of 90.17$255$214$721$306$14$163
Total$56,660$43,845$71,690$46,050$62,034$87,631