SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
13	OIL AND GAS EXTRACTION	4,457
15	GENERAL BUILDING CONTRACTORS	3,133
16	HEAVY CONSTRUCTION CONTRACTORS	6,526	75
17	SPECIAL TRADE CONTRACTORS	1,610
20	FOOD AND KINDRED PRODUCTS	1,760	17
23	APPAREL AND OTHER TEXTILE PRODUCTS	111
24	LUMBER AND WOOD PRODUCTS	35
26	PAPER AND ALLIED PRODUCTS	3,054
27	PRINTING AND PUBLISHING	22
28	CHEMICALS AND ALLIED PRODUCTS	677
29	PETROLEUM AND COAL PRODUCTS	1,021
30	RUBBER AND MISC. PLASTICS PRODUCTS	1,640
32	STONE, CLAY, AND GLASS PRODUCTS	364
33	PRIMARY METAL INDUSTRIES	9,501	51
34	FABRICATED METAL PRODUCTS	17,803	184
35	MACHINERY, EXCEPT ELECTRICAL	11,378	43
36	ELECTRIC AND ELECTRONIC EQUIPMENT	25
37	TRANSPORTATION EQUIPMENT	9,558	54
44	WATER TRANSPORTATION	990
49	ELECTRIC, GAS, AND SANITARY SERVICES	3,828
50	WHOLESALE TRADE - DURABLE GOODS	2,363
75	AUTO REPAIR, SERVICES, AND GARAGES	9,044
76	MISCELLANEOUS REPAIR SERVICES	9,853
TOTAL		98,752	424

*(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.