SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
13	OIL AND GAS EXTRACTION	3,379
15	GENERAL BUILDING CONTRACTORS	50
16	HEAVY CONSTRUCTION CONTRACTORS	490
17	SPECIAL TRADE CONTRACTORS	9,099
20	FOOD AND KINDRED PRODUCTS	2,468
22	TEXTILE MILL PRODUCTS	1,638	35
23	APPAREL AND OTHER TEXTILE PRODUCTS	111
24	LUMBER AND WOOD PRODUCTS	956
25	FURNITURE AND FIXTURES	266
27	PRINTING AND PUBLISHING	420
28	CHEMICALS AND ALLIED PRODUCTS	8,072	2,205
29	PETROLEUM AND COAL PRODUCTS	4,338
30	RUBBER AND MISC. PLASTICS PRODUCTS	4,481	1,155
32	STONE, CLAY, AND GLASS PRODUCTS	214
33	PRIMARY METAL INDUSTRIES	5,468	40
34	FABRICATED METAL PRODUCTS	5,911	79
35	MACHINERY, EXCEPT ELECTRICAL	6,935	140
36	ELECTRIC AND ELECTRONIC EQUIPMENT	5,376	1,651
37	TRANSPORTATION EQUIPMENT	10,492	52
38	INSTRUMENTS AND RELATED PRODUCTS	314
39	MISCELLANEOUS MANUFACTURING INDUSTRIES	118
41	LOCAL AND INTERURBAN PASSENGER TRANSIT	943
42	TRUCKING AND WAREHOUSING	1,206
44	WATER TRANSPORTATION	1,708	244
45	TRANSPORTATION BY AIR	5,201	199
49	ELECTRIC, GAS, AND SANITARY SERVICES	558
50	WHOLESALE TRADE - DURABLE GOODS	825
55	AUTOMOTIVE DEALERS & SERVICE STATIONS	8,078
73	BUSINESS SERVICES	2,097	57
75	AUTO REPAIR, SERVICES, AND GARAGES	5,703
80	HEALTH SERVICES	11,997	6,945
TOTAL		108,911	12,803

*(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.