SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
13	OIL AND GAS EXTRACTION	8,072
16	HEAVY CONSTRUCTION CONTRACTORS	429
17	SPECIAL TRADE CONTRACTORS	1,812
20	FOOD AND KINDRED PRODUCTS	1,721	886
21	TOBACCO MANUFACTURERS
22	TEXTILE MILL PRODUCTS	962	249
23	APPAREL AND OTHER TEXTILE PRODUCTS	11,414	10,892
24	LUMBER AND WOOD PRODUCTS	1,114	7
26	PAPER AND ALLIED PRODUCTS	439
27	PRINTING AND PUBLISHING	5,301
28	CHEMICALS AND ALLIED PRODUCTS	6
29	PETROLEUM AND COAL PRODUCTS	1,369
30	RUBBER AND MISC. PLASTICS PRODUCTS	219
32	STONE, CLAY, AND GLASS PRODUCTS	1,852	985
33	PRIMARY METAL INDUSTRIES	1,959
34	FABRICATED METAL PRODUCTS	2,060
35	MACHINERY, EXCEPT ELECTRICAL	25,185	7,966
36	ELECTRIC AND ELECTRONIC EQUIPMENT	2,597	278
37	TRANSPORTATION EQUIPMENT	5,246	302
38	INSTRUMENTS AND RELATED PRODUCTS	47	6
39	MISCELLANEOUS MANUFACTURING INDUSTRIES	1,609	408
41	LOCAL AND INTERURBAN PASSENGER TRANSIT	516
42	TRUCKING AND WAREHOUSING	4,038
44	WATER TRANSPORTATION	1,752
45	TRANSPORTATION BY AIR	7,074
49	ELECTRIC, GAS, AND SANITARY SERVICES	9,677
50	WHOLESALE TRADE - DURABLE GOODS	7,887	371
55	AUTOMOTIVE DEALERS & SERVICE STATIONS	2,392
75	AUTO REPAIR, SERVICES, AND GARAGES	1,797
80	HEALTH SERVICES	121
TOTAL		108,671	22,350

*(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.