SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
13	OIL AND GAS EXTRACTION	13,277
15	GENERAL BUILDING CONTRACTORS	13,316	5
16	HEAVY CONSTRUCTION CONTRACTORS	5,320	20
17	SPECIAL TRADE CONTRACTORS	21,432
20	FOOD AND KINDRED PRODUCTS	4,114
21	TOBACCO MANUFACTURERS	7
22	TEXTILE MILL PRODUCTS	4,877	1,904
23	APPAREL AND OTHER TEXTILE PRODUCTS	176
24	LUMBER AND WOOD PRODUCTS	19,574	6,121
25	FURNITURE AND FIXTURES	48,232	18,814
26	PAPER AND ALLIED PRODUCTS	7,387	960
27	PRINTING AND PUBLISHING	25,731	1,457
28	CHEMICALS AND ALLIED PRODUCTS	14,382	2,863
29	PETROLEUM AND COAL PRODUCTS	833
30	RUBBER AND MISC. PLASTICS PRODUCTS	10,512	1,376
31	LEATHER AND LEATHER PRODUCTS	674	379
32	STONE, CLAY, AND GLASS PRODUCTS	6,525
33	PRIMARY METAL INDUSTRIES	11,960	131
34	FABRICATED METAL PRODUCTS	51,739	2,907
35	MACHINERY, EXCEPT ELECTRICAL	165,263	10,864
36	ELECTRIC AND ELECTRONIC EQUIPMENT	69,360	18,632
37	TRANSPORTATION EQUIPMENT	70,895	2,688
38	INSTRUMENTS AND RELATED PRODUCTS	36,240	9,781
39	MISCELLANEOUS MANUFACTURING INDUSTRIES	14,548	4,313
40	RAILROAD TRANSPORTATION	22
41	LOCAL AND INTERURBAN PASSENGER TRANSIT	2,540
42	TRUCKING AND WAREHOUSING	3,410
44	WATER TRANSPORTATION	1,708
45	TRANSPORTATION BY AIR	24,226	345
48	COMMUNICATION	13,706	65
49	ELECTRIC, GAS, AND SANITARY SERVICES	18,384
50	WHOLESALE TRADE - DURABLE GOODS	11,654
51	WHOLESALE TRADE - NONDURABLE GOODS	2,063
55	AUTOMOTIVE DEALERS & SERVICE STATIONS	3,156	427
72	PERSONAL SERVICES	13,508	8,350
73	BUSINESS SERVICES	12,499	593
75	AUTO REPAIR, SERVICES, AND GARAGES	30,934	466
76	MISCELLANEOUS REPAIR SERVICES	3,606
80	HEALTH SERVICES	62,143	49,705
84	MUSEUMS, BOTANICAL, ZOOLOGICAL GARDENS	2,103	440
TOTAL		822,099	143,606

*(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.