SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
13	OIL AND GAS EXTRACTION	12,915
15	GENERAL BUILDING CONTRACTORS	16,552
16	HEAVY CONSTRUCTION CONTRACTORS	3,838
17	SPECIAL TRADE CONTRACTORS	23,145
20	FOOD AND KINDRED PRODUCTS	585
22	TEXTILE MILL PRODUCTS	4,256	89
23	APPAREL AND OTHER TEXTILE PRODUCTS	544	366
24	LUMBER AND WOOD PRODUCTS	3,745	924
25	FURNITURE AND FIXTURES	1,033	90
26	PAPER AND ALLIED PRODUCTS	5,088	28
27	PRINTING AND PUBLISHING	15,097	2,805
28	CHEMICALS AND ALLIED PRODUCTS	7,057	1,077
29	PETROLEUM AND COAL PRODUCTS	535
30	RUBBER AND MISC. PLASTICS PRODUCTS	12,149	6,510
31	LEATHER AND LEATHER PRODUCTS	4,117	2,538
32	STONE, CLAY, AND GLASS PRODUCTS	986
33	PRIMARY METAL INDUSTRIES	1,030	5
34	FABRICATED METAL PRODUCTS	10,252	3,376
35	MACHINERY, EXCEPT ELECTRICAL	40,775	10,746
36	ELECTRIC AND ELECTRONIC EQUIPMENT	5,059	2,312
37	TRANSPORTATION EQUIPMENT	14,571	1,083
38	INSTRUMENTS AND RELATED PRODUCTS	5,959	2,821
39	MISCELLANEOUS MANUFACTURING INDUSTRIES	11,292	2,784
41	LOCAL AND INTERURBAN PASSENGER TRANSIT	331
42	TRUCKING AND WAREHOUSING	1,812
45	TRANSPORTATION BY AIR	11,113	57
48	COMMUNICATION	215	29
49	ELECTRIC, GAS, AND SANITARY SERVICES	9,873	116
50	WHOLESALE TRADE - DURABLE GOODS	7,298
51	WHOLESALE TRADE - NONDURABLE GOODS	3,515	431
55	AUTOMOTIVE DEALERS & SERVICE STATIONS	5,304	427
73	BUSINESS SERVICES	7,074	72
75	AUTO REPAIR, SERVICES, AND GARAGES	11,903
76	MISCELLANEOUS REPAIR SERVICES	1,017
80	HEALTH SERVICES	1,076	89
TOTAL		261,111	38,773

*(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.