SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
07	AGRICULTURAL SERVICES	15,955
13	OIL AND GAS EXTRACTION	3,635
15	GENERAL BUILDING CONTRACTORS	79,903	254
16	HEAVY CONSTRUCTION CONTRACTORS	37,211
17	SPECIAL TRADE CONTRACTORS	112,971	108
20	FOOD AND KINDRED PRODUCTS	6,312
21	TOBACCO MANUFACTURERS	8
22	TEXTILE MILL PRODUCTS	1,952
23	APPAREL AND OTHER TEXTILE PRODUCTS	4,632	2,858
24	LUMBER AND WOOD PRODUCTS	9,020	1,742
25	FURNITURE AND FIXTURES	7,013	1,709
26	PAPER AND ALLIED PRODUCTS	21,308	4,302
27	PRINTING AND PUBLISHING	8,771	235
28	CHEMICALS AND ALLIED PRODUCTS	5,861	66
29	PETROLEUM AND COAL PRODUCTS	430
30	RUBBER AND MISC. PLASTICS PRODUCTS	23,039	8,723
31	LEATHER AND LEATHER PRODUCTS	1,507	1,060
32	STONE, CLAY, AND GLASS PRODUCTS	32,208	2,559
33	PRIMARY METAL INDUSTRIES	20,714	121
34	FABRICATED METAL PRODUCTS	18,038	1,833
35	MACHINERY, EXCEPT ELECTRICAL	17,138	1,376
36	ELECTRIC AND ELECTRONIC EQUIPMENT	11,170	5,550
37	TRANSPORTATION EQUIPMENT	19,349	890
38	INSTRUMENTS AND RELATED PRODUCTS	904	114
39	MISCELLANEOUS MANUFACTURING INDUSTRIES	2,525	815
40	RAILROAD TRANSPORTATION	4,040
42	TRUCKING AND WAREHOUSING	35
45	TRANSPORTATION BY AIR	8,268	57
48	COMMUNICATION	13,706	65
49	ELECTRIC, GAS, AND SANITARY SERVICES	14,876	140
50	WHOLESALE TRADE - DURABLE GOODS	9,470	138
51	WHOLESALE TRADE - NONDURABLE GOODS	7,520	474
55	AUTOMOTIVE DEALERS & SERVICE STATIONS	2,604	427
73	BUSINESS SERVICES	119
75	AUTO REPAIR, SERVICES, AND GARAGES	2,840
76	MISCELLANEOUS REPAIR SERVICES	3,146
80	HEALTH SERVICES	3,431	466
84	MUSEUMS, BOTANICAL, ZOOLOGICAL GARDENS	1,643	164
TOTAL		533,341	36,245

*(1) By survey design, not all 2-digit SICs were surveyed. (2) The estimates for each 2-digit SIC apply only to the 3- and 4-digit SICs surveyed within the 2-digit SIC. Not all SICs were surveyed. (3) When using the estimates, standard errors associated with estimates should be considered. (4) Potential exposures to a chemical agent are categorized as actual (i.e., the surveyor observed the use of the specific agent) or tradename (i.e., the surveyor observed the use of a tradename product known to contain the specific agent). The estimates presented in the table combine both categories.