SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
13	OIL AND GAS EXTRACTION	14,238
20	FOOD AND KINDRED PRODUCTS	22
22	TEXTILE MILL PRODUCTS	485
25	FURNITURE AND FIXTURES	49
26	PAPER AND ALLIED PRODUCTS	48
28	CHEMICALS AND ALLIED PRODUCTS	1,848	1,081
29	PETROLEUM AND COAL PRODUCTS	673
30	RUBBER AND MISC. PLASTICS PRODUCTS	510
32	STONE, CLAY, AND GLASS PRODUCTS	1,338
33	PRIMARY METAL INDUSTRIES	1,717
34	FABRICATED METAL PRODUCTS	1,223	496
35	MACHINERY, EXCEPT ELECTRICAL	336	71
36	ELECTRIC AND ELECTRONIC EQUIPMENT	2
37	TRANSPORTATION EQUIPMENT	287
42	TRUCKING AND WAREHOUSING	659	54
45	TRANSPORTATION BY AIR	241
49	ELECTRIC, GAS, AND SANITARY SERVICES	1,256
73	BUSINESS SERVICES	10,094	1,359
80	HEALTH SERVICES	1,361	762
TOTAL		36,387	3,824

*(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.