Commodity2005200620072008200920102011
Drafting tables & machines, whether or not auto.$883,988$1,071,214$1,801,553$1,652,115$486,990$392,673$685,558
Drawing/marking-out/mathematical calculating instr. other than drafting tab ...$377,665$571,681$808,143$956,352$422,798$635,480$599,913
Micrometers, callipers & gauges$379,015$359,831$597,425$741,427$293,620$281,071$447,369
Instruments for meas. length, for use in the hand (e.g., meas. rods & tapes ...$429,225$562,411$1,013,123$1,194,049$610,858$575,582$803,303
Parts & accessories of the instr. of 90.17$83,419$112,656$154,674$161,027$76,655$65,213$66,199
Total$2,153,312$2,677,793$4,374,918$4,704,970$1,890,921$1,950,019$2,602,342