SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
13	OIL AND GAS EXTRACTION	832	832
20	FOOD AND KINDRED PRODUCTS	190
23	APPAREL AND OTHER TEXTILE PRODUCTS	149	75
24	LUMBER AND WOOD PRODUCTS	28
26	PAPER AND ALLIED PRODUCTS	1,532	108
27	PRINTING AND PUBLISHING	27
32	STONE, CLAY, AND GLASS PRODUCTS	9,905
33	PRIMARY METAL INDUSTRIES	632
34	FABRICATED METAL PRODUCTS	193	20
35	MACHINERY, EXCEPT ELECTRICAL	3,398	91
36	ELECTRIC AND ELECTRONIC EQUIPMENT	151	140
37	TRANSPORTATION EQUIPMENT	1,950	3
38	INSTRUMENTS AND RELATED PRODUCTS	220
42	TRUCKING AND WAREHOUSING	404	339
45	TRANSPORTATION BY AIR	5,929
49	ELECTRIC, GAS, AND SANITARY SERVICES	498
50	WHOLESALE TRADE - DURABLE GOODS	57	57
55	AUTOMOTIVE DEALERS & SERVICE STATIONS	989
72	PERSONAL SERVICES	1,813
73	BUSINESS SERVICES	106
80	HEALTH SERVICES	856	338
TOTAL		29,858	2,003

*(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.