SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
13	OIL AND GAS EXTRACTION	649	50
15	GENERAL BUILDING CONTRACTORS	670
17	SPECIAL TRADE CONTRACTORS	4,534	107
20	FOOD AND KINDRED PRODUCTS	2,506
22	TEXTILE MILL PRODUCTS	1,104
23	APPAREL AND OTHER TEXTILE PRODUCTS	395
24	LUMBER AND WOOD PRODUCTS	1,299
27	PRINTING AND PUBLISHING	2,348	92
28	CHEMICALS AND ALLIED PRODUCTS	2,157	388
29	PETROLEUM AND COAL PRODUCTS	1,869	170
30	RUBBER AND MISC. PLASTICS PRODUCTS	126	14
31	LEATHER AND LEATHER PRODUCTS	72
32	STONE, CLAY, AND GLASS PRODUCTS	1,817
33	PRIMARY METAL INDUSTRIES	3,068	46
34	FABRICATED METAL PRODUCTS	7,544	1,130
35	MACHINERY, EXCEPT ELECTRICAL	35,579	6,079
36	ELECTRIC AND ELECTRONIC EQUIPMENT	6,916	3,070
37	TRANSPORTATION EQUIPMENT	13,345	125
38	INSTRUMENTS AND RELATED PRODUCTS	259
39	MISCELLANEOUS MANUFACTURING INDUSTRIES	677	677
40	RAILROAD TRANSPORTATION	1,610
42	TRUCKING AND WAREHOUSING	12,992
45	TRANSPORTATION BY AIR	162
48	COMMUNICATION	101
50	WHOLESALE TRADE - DURABLE GOODS	10,179
55	AUTOMOTIVE DEALERS & SERVICE STATIONS	2,087
73	BUSINESS SERVICES	423
75	AUTO REPAIR, SERVICES, AND GARAGES	15,995
80	HEALTH SERVICES	1,878	45
TOTAL		132,358	11,992

*(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.