SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
15	GENERAL BUILDING CONTRACTORS	30,656
16	HEAVY CONSTRUCTION CONTRACTORS	12,095	484
17	SPECIAL TRADE CONTRACTORS	47,196
20	FOOD AND KINDRED PRODUCTS	1,568
22	TEXTILE MILL PRODUCTS	536
23	APPAREL AND OTHER TEXTILE PRODUCTS	2,408	433
24	LUMBER AND WOOD PRODUCTS	3,386	127
25	FURNITURE AND FIXTURES	2,242	332
26	PAPER AND ALLIED PRODUCTS	3,744
27	PRINTING AND PUBLISHING	256
28	CHEMICALS AND ALLIED PRODUCTS	5,294	179
29	PETROLEUM AND COAL PRODUCTS	492
30	RUBBER AND MISC. PLASTICS PRODUCTS	996
32	STONE, CLAY, AND GLASS PRODUCTS	756
33	PRIMARY METAL INDUSTRIES	32,599	647
34	FABRICATED METAL PRODUCTS	54,425	8,071
35	MACHINERY, EXCEPT ELECTRICAL	71,434	2,626
36	ELECTRIC AND ELECTRONIC EQUIPMENT	11,387	1,064
37	TRANSPORTATION EQUIPMENT	44,235	2,076
38	INSTRUMENTS AND RELATED PRODUCTS	6,967	1,990
39	MISCELLANEOUS MANUFACTURING INDUSTRIES	4,004	1,554
42	TRUCKING AND WAREHOUSING	3,308	38
45	TRANSPORTATION BY AIR	1,124	9
49	ELECTRIC, GAS, AND SANITARY SERVICES	4,976
50	WHOLESALE TRADE - DURABLE GOODS	9,538
55	AUTOMOTIVE DEALERS & SERVICE STATIONS	1,751
73	BUSINESS SERVICES	3,773
75	AUTO REPAIR, SERVICES, AND GARAGES	7,863
76	MISCELLANEOUS REPAIR SERVICES	72
80	HEALTH SERVICES	1,968	323
TOTAL		371,052	19,954

*(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.