SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
13	OIL AND GAS EXTRACTION	4,449
15	GENERAL BUILDING CONTRACTORS	15,508	453
16	HEAVY CONSTRUCTION CONTRACTORS	24,779	169
17	SPECIAL TRADE CONTRACTORS	34,028	141
20	FOOD AND KINDRED PRODUCTS	4,832	404
22	TEXTILE MILL PRODUCTS	1,342
23	APPAREL AND OTHER TEXTILE PRODUCTS	415
24	LUMBER AND WOOD PRODUCTS	6,347	2,146
25	FURNITURE AND FIXTURES	2,751	174
26	PAPER AND ALLIED PRODUCTS	13,937	2,254
27	PRINTING AND PUBLISHING	37,907	3,099
28	CHEMICALS AND ALLIED PRODUCTS	8,066	408
29	PETROLEUM AND COAL PRODUCTS	5,139	166
30	RUBBER AND MISC. PLASTICS PRODUCTS	7,050	702
33	PRIMARY METAL INDUSTRIES	4,593	62
34	FABRICATED METAL PRODUCTS	6,199	2,253
35	MACHINERY, EXCEPT ELECTRICAL	10,623	573
36	ELECTRIC AND ELECTRONIC EQUIPMENT	6
37	TRANSPORTATION EQUIPMENT	9,886	677
38	INSTRUMENTS AND RELATED PRODUCTS	2,542	945
39	MISCELLANEOUS MANUFACTURING INDUSTRIES	768	506
41	LOCAL AND INTERURBAN PASSENGER TRANSIT	727
42	TRUCKING AND WAREHOUSING	3,754	445
44	WATER TRANSPORTATION	7,408
45	TRANSPORTATION BY AIR	18,340	1,767
47	TRANSPORTATION SERVICES	473	86
48	COMMUNICATION	1,543
49	ELECTRIC, GAS, AND SANITARY SERVICES	2,032	116
50	WHOLESALE TRADE - DURABLE GOODS	7,203
51	WHOLESALE TRADE - NONDURABLE GOODS	1,359
55	AUTOMOTIVE DEALERS & SERVICE STATIONS	7,043
72	PERSONAL SERVICES	4,930	3,615
73	BUSINESS SERVICES	3,196	966
75	AUTO REPAIR, SERVICES, AND GARAGES	22,999
76	MISCELLANEOUS REPAIR SERVICES	1,850
80	HEALTH SERVICES	3,913	1,639
TOTAL		287,936	23,767

*(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.