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n.a. Not available.
swithheld because the estimate did not meet publication standards, either on the basis of the associated standard error of estimate or on the basis of a consistency review.
1 Value of products less cost of materials, supplies, fuel, electric energy, and contract work.
2The percentage standard errors shown in this column indicate the differences that can be expected between the estimates and comparable complete canvass totals, because of sampling fluctuations. The estimates will differ from the complete totals by less than:
(1) The percentage shown: approximately 2 times out of 3
3 Cost of materials and value of products are not shown for industries for which these figures contain extensive duplication. The duplication arises where the products of some establishments are used as materials by other establishments classified in the same industry.
Includes data for Sausage Casings (Industry 2014).
procedure was used for calculating value added by manufacture for larger establishments, i.e., the value of production during 1947 was used instead of value of products shipped. Since the 1951, 1950 and 1949 estimates are derived from 1947 census base totals, the same inequality may appear for the 1951, 1950 and 1949 data.
Includes data for Shingle Mills (Industry 2423). 7Data for 1951 not comparable with prior years. For 1947 through 1950 establishments engaged in the production of wood or metal storm-sash, and wood-or-metal-combination-screen and storm-sash and doors were classified in Industry 2561 (Window and door screens); in 1951 they are classified in Industry 2431 (Millwork Plants), if the products are of wood; in Industry 3422 (Metal Doors, Sash and Trim), if the products are of
Includes data for Building-paper and Building-board Mills (Industry 2613).
10The 1951, 1950 and 1949 data for Industries 3811 (Scientific Instruments), 3821 (Mechanical Measuring Instruments), 3831 (Optical Instruments) and 3861 (Photographic Equipment) are not strictly comparable with data shown for 1947. This is due to the misclassification in 1947 of several establishments and to the change in plant definition after 1947 for some establishments. On a comparable basis in terms of value added by manufacture, it is estimated that the 1947 figures for Industry 3831 should be approximately 50 percent greater and about 5 percent less for Industry 3811.